Publications
2025 (2 papers)
# Original papers (2)
S. Hosokawa, N. Happo, K. Hayashi, and T. Matsushita
Three-dimensional atomic configurations in a ZnFe2O4 single crystal by X-ray fluorescence holography
e-Journal of Surface Science and Nanotechnology 23, 77-82 (2025), doi:10.1380/ejssnt.2025-006
The Zn and Fe atoms in ZnFe2O4 single crystal are found to be located at the fourfold A sites and sixfold B sites, respectively, at room temperature. It is also found that the atomic configurations around the Fe atoms are highly distorted.
S. Hosokawa, J. R. Stellhorn, L. Pusztai, Y. Yamazaki, J. Jiang, H. Kato, T. Ichitsubo, E. Magome, N. Blanc, N. Boudet, K. Ohara, S. Tsutsui, H. Uchiyama, and A. Q. R. Baron
Structural and Dynamical Changes in a Gd-Co Metallic Glass by Cryogenic Rejuvenation
Acta Materialia 284, 120616-1-10 (2025), doi: 10.1016/j.actamat.2024.120616
Changes in atomic configurations and elastic properties of Gd65Co35 metallic glass by cryogenic rejuvenation are clarified by high energy x-ray diffraction and anomalous x-ray scattering, and inelastic x-ray scattering experiments, respectively.
2024 (4 papers)
# Original papers (4)
S. Hosokawa, Y. Katayama, S. Tsutsui, and A. Q. R. Baron
Collective dynamics of liquid sulphur across the polymerisation transition temperature probed by inelastic x-ray scattering
Journal of Physic: Condensed Matter 36, 425102-1-11 (2024), doi: 10.1088/1361-648X/ad493f
Phonon dynamics of liquid sulphur is investigated across the polymerisation transition temperature by inelastic x-ray scattering experiment.
S. Hosokawa and K. Yoshida
Improved data analysis for molecular dynamics in liquid CCl4
Journal of Molecular Liquids 395, 123828-1-8 (2024), doi: 10.1016/j.molliq.2023.123828
The origin of the fast sound in liquid CCl4 appeared in inelastic x-ray scattering is clarified by a new analytical technique.
S. Hosokawa, J. R. Stellhorn, N. Boudet, N. Blanc, E. Magome, L. Pusztai, S. Kohara, K. Ikeda, and T. Otomo
Local- and intermediate-range partial structure study of As-Se glasses (JPS Hot Topics)
Journal of the Physical Society of Japan 93, 014601-1-12 (2024), doi: 10.7566/JPSJ.93.014601
Atomic structures of As-Se glasses are determined by anomalous X-ray scattering, X-ray and neutron diffraction and reverse Monte Carlo analysis.
S. Hosokawa, H. Sato, Y. Tezuka, J. Adachi, K. Kimura, K. Hayashi, S. Kohara, H. Tajiri, K. Kobayashi, A. Koura, and F. Shimojo
Atomic and electronic structures on a mordenite zeolite
e-Journal of Surface Science and Nanotechnology 22, 25-31 (2024), doi: 10.1380/ejssnt.2023-063
Atomic and electronic structures of typical zeolite of mordenite were measured and the results were found to consistent with a density functional theory.
2023 (10 papers)
# Original papers (8)
S. Hosokawa and K. Yoshida
A possible origin of the very fast sound in terahertz region in liquid benzene
Journal of Molecular Liquids 390, 123063-1-9 (2023), doi: 10.1016/j.molliq.2023.123063
The origin of the fast sound in liquid benzene appeared in inelastic x-ray scattering is clarified by a new analytical technique.
M. Inui, Y. Kajihara, S. Hosokawa, K. Matsuda, S. Tsutsui, and A. Q. R. Baron
Collective modes in molten CsCl, CuCl and AgI observed by inelastic x-ray scattering
Journal of Molecular Liquids 390, 123019-1-7 (2023), doi: 10.1016/j.molliq.2023.123019
Prof. Inui of Hiroshima University clarify the vibrational structures on some molten salts.
J. L. Vasco, J. R. Stellhorn, B. D. Klee, J. Belz, J. Haust, S. Hosokawa, S. Hayakawa, K. Volz, S. Dehnen, and W.-C. Pilgrim
Structure Determination in a New Type of Amorphous Molecular Solids with Different Nonlinear Optical Properties: A Comparative Structural Analysis
Journal of Physics: Condensed Matter 35, 384001-1-10 (2023), doi: 10.1088/1361-648X/acda06
Christian and coworkers investigate the relationship between the differences of nonlinear optical properties and atomic structures.
S. Hosokawa, K. Kobayashi, A. Koura, F. Shimojo, Y. Tezuka, J. Adachi, Y. Onodera, S. Kohara, H. Tajiri, A. Chokkalingam, and T. Wakihara
Atomic and electronic structures of an Ag-containing 4A zeolite
Microporous and Mesoporous Materials 359, 112662-1-8 (2023), doi: 10.1016/j.micromeso.2023.112662
Based on experimental atomic and electronic structures as well as density functional theory, Ag atoms of Ag containing 4A type zeolite show a valency of 0.5, which my be the origin of anti-bacterial function in this zeolites.
J. R. Stellhorn, B. D. Klee, M. Inui, H. Taniguchi, Y. Sutou, S. Hosokawa, and W.-C. Pilgrim
Structural origins of the unusual thermal stability of amorphous CuxGe50−xTe50 (0 ≤ x ≤ 33.3)
Journal of Physics: Condensed Matter 35, 304004-1-7 (2023), doi: 10.1088/1361-648X/acce13
Jens kun in Nagoya University reviews atomic structures of Cu-Ge-Te phase-change materials.
M. Inui, S. Hosokawa, S. Tsutsui, Y. Nakajima, K. Matsuda, K. Maruyama, and A. Q. R. Baron
Collective excitations in a melt of fast phase change material GeCu2Te3
Journal of Physics: Condensed Matter 35, 234002-1-7 (2023), doi: 10.1088/1361-648X/acc2ff
Prof. Inui of Hiroshima University studies dynamics in liquid state of GeCu2Te3 phase change material by inelastic x-ray scattering.
T. Hasegawa, M. Inui, T. Onimaru, Y. Kajihara, S. Hosokawa, Y. Nakajima, K. Matsuda, T. Takabatake, S. Hiroi, H. Uchiyama, and S. Tsutsui
Phonon dispersion curves in the type-I crystalline and molten clathrate compound Eu8Ga16Ge30
Journal of Physics: Condensed Matter 35, 114002-1-8 (2023), doi: 10.1088/1361-648X/acb0a5
Prof. Inui of Hiroshima University studies dynamics in liquid state of Eu-Ga-Ge clathrate material by inelastic x-ray scattering.
T. Kato, K. Kimura, S. Hosokawa, S. Ando, S. Kashima, Y. Hashimoto, N. Happo, T. Matsushita, H. Ishii, and K. Hayashi
Local structure analysis around Y in Mg99.7Y0.3 single crystal using x-ray fluorescence holography
Journal of Electron Spectroscopy and Related Phenomena 262, 147279-1-5 (2023), doi: 10.1016/j.elspec.2022.147279
Dr. Kato of Nagoya Institute of Technology (SiMAP) studies local structures of a Mg-Y alloy by x-ray fluorescence holography.
# Book (1)
A. Chiba and S. Hosokawa
Dynamics in K. Hayashi (ed.) Hyperordered Structures in Materials: Disorder in Order and Order within Disorder (Springer, 2023), Chap 6
# Review papers in Japanese (1)
S. Hosokawa
Atomic structures and glass-forming ability of Pd-based bulk metallic glasses
Journal of the Society of Materials Science, Japan “Zairyo” 72, 234-236 (2023)
Recent studies on the relationship between atomic structures and glass-forming ability of Pd-based bulk metallic glasses are reviewed.
2022 (10 papers)
# Original papers (6)
T. Yamaguchi, K. Yoshida, S. Hosokawa, D. Ishikawa, and A. Q. R. Baron
Effects of molecular shape and flexibility on fast sound of organic liquids
Journal of Chemical Physics 157, 154504-1-11 (2022), doi: 10.1063/5.0107387
Dr. T. Yamaguchi of Nagoya University investigates inelastic x-ray scattering spectra on various molecular liquids.
S. Hosokawa, J.-F. Bérar, N. Boudet, W.-C. Pilgrim, L. Pusztai, S. Hiroi, S. Kohara, H. Kato, H. E. Fischer, A. Zeidler
Relationship between atomic structure and excellent glass forming ability in Pd42.5Ni7.5Cu30P20 metallic glass
Journal of Non-Crystalline Solids 569, 121868-1-12 (2022), doi: 10.1016/j.jnoncrysol.2022.121868 Structural features of the champion of bulk metallic glass having the best glass-forming ability are carefully investigated.
H. Kizaki, K. Hayashi, C. Lu, N. Happo, S. Hosokawa, S. Hidaka, S. Hayashi, M. Suzuki, and N. Uchitomi
Anomalous atomic fluctuations in the local structure around Mn of (Zn,Sn,Mn)As2 thin film: X-ray fluorescence holography and a first-principles calculation
Physical Review B 106, 064434-1-9 (2022), doi: 10.1103/PhysRevB.106.064434
Dr. Kizaki of Osaka University studied on structural fluctuations in a (Zn,Sn,Mn)As2 thin film by x-ray fluorescence holography and first principles molecular dynamic simulation.
B. Klee, B. Paulus, J. Link Vasco, S. Hosokawa, J. R. Stellhorn, S. Hayakawa, S. Dehnen, W.-C. Pilgrim
Origin of Crystallization Suppression in a New Amorphous Molecular White-Light-Generating Material
Scripta Materialia 219, 114851 (2022), doi: 10.1016/j.scriptamat.2022.114851
Benjamin obtains atomic structures of an amorphous white laser material.
W.-C. Pilgrim, J. R. Stellhorn, B. D. Klee, J. L. Vasco, B. Paulus, A. Zeidler, S. Hosokawa, S. Hayakawa, and S. Dehnen
Structure Determination in a new Class of Amorphous Cluster Compounds with Extreme Nonlinear Optical Properties
Journal of Physical Society of Japan 91, 091004-1-11 (2022), doi: 10.7566/JPSJ.91.091004
Christian reviews on the atomic structure of amorphous material that transform from monochromatic to white laser.
B. Paulus, J. R. Stellhorn, S. Hosokawa, B. D. Klee, Y. Sutou, and W.-C. Pilgrim
Short-Range Order Investigation of CuxGe50-xTe50 Phase-Change Materials
Physica Status Solidi B 259, 2100619-1-10 (2022), doi: 10.1002/pssb.202100619
Benedict clarifies the short-range atomic structures in CuxGe50-xTe50 phase-change materials by XAFS.
# Conference Proceedings papers (2)
N. Happo, K. Hayashi, T. Matsushita, and S. Hosokawa
Local structure analysis on yttria-stabilized zirconia by x-ray fluorescence holography
e-Journal of Surface Science and Nanotechnology 20, 51-57 (2022), doi: 10.1380/ejssnt.2022-006
Different lattice distortions around Y and Zr in cubic zirconia are clarified by x-ray fluorescence holography.
S. Hosokawa, N. Happo, K. Hayashi, T. Matsushita, and A. Yamashita
Three-dimensional atomic image of FeSe high-temperature superconductor by x-ray fluorescence holography
e-Journal of Surface Science and Nanotechnology 20, 36-41 (2022), doi: 10.1380/ejssnt.2022-001
Structure of the simplest Fe-based high-temperature superconductor FeSe is observed by x-ray fluorescence holography.
# Review papers in Japanese (2)
S. Hosokawa
Basis in structural studies on glasses by diffraction experiments
Journal of the Japan Society for Synchrotron Radiation Research 35, 263-273 (2022)
Investigations on glass structures by diffraction experiments are reviewed from the basis.
S. Hosokawa
Progress of structural analysis on amorphous materials by quantum beams
Solid State Physics 57, 35-44 (2022)
Recent progresses of structural analyses on amorphous materials by using quantum beams of x-rays and neutrons are reviewed.
2021 (12 papers)
# Original papers (10)
M. Inui, Y. Kajihara, S. Hosokawa, A. Chiba, Y. Nakajima, K. Matsuda, J. R. Stellhorn, T. Hagiya, D. Ishikawa, H. Uchiyama, S. Tsutsui, and A. Q. R. Baron
Low energy excitation in liquid Sb and liquid Bi observed in inelastic x-ray scattering spectra
Journal of Physics: Condensed Matter 33, 475101-1-8 (2021), doi: 10.1088/1361-648X/ac216c
Prof. Inui of Hiroshima University investigates lattice dynamics of liquid Sb in comparison with Bi by inelastic x-ray scattering.
K. Hayashi, N. Happo, and S. Hosokawa
A cryostat designed for x-ray fluorescence holography experiments down to 4 K
Review of Scientific Instruments 92, 083703-1-7 (2021), doi: 10.1063/5.0056914
A cryostat capable of x-ray fluorescence holography experiments down to 4 K is completed with a support by JSPS Grant-in-Aid for Scientific Research (B).
M. Inui, Y. Kajihara, S. Hosokawa, A. Chiba, Y. Nakajima, K. Matsuda, Y. Tsuchiya, J. R. Stellhorn, T. Hagiya, H. Uchiyama, S. Tsutsui, and A. Q. R. Baron
Longitudinal acoustic and higher energy excitations in liquid phase change material Ge2Sb2Te5
Physical Review B 104, 064202-1-8 (2021), doi: 10.1103/PhysRevB.104.064202
Prof. Inui of Hiroshima University investigates lattice dynamics of liquid Ge2Sb2Te5 by inelastic x-ray scattering.
F. Demmel. S. Hosokawa, and W.-C. Pilgrim
Collective particle dynamics of molten NaCl by inelastic x-ray scattering
Journal of Physics: Condensed Matter 33, 375103-1-12 (2021), doi: 10.1088/1361-648X/ac101c
Franz of ISIS investigates collective lattice dynamics of liquid NaCl by inelastic x-ray scattering.
S. Hosokawa, T. Kamiyama, K. Yoshida, T. Yamaguchi, S. Tsutsui, and A. Q. R. Baron
Collective dynamics of liquid acetone investigated by inelastic x-ray scattering
Journal of Molecular Liquids 332, 115825-1-9 (2021), doi: 10.1016/j.molliq.2021.115825
Longitudinal acoustic phonon modes of liquid acetone are obtained by inelastic x-ray scattering, and analyzed by a generalized Langevin equation with a simple sparse modeling. The obtained fast and slow viscoelastic relaxation rates are found for the first time to correspond to vibration mode in the molecule and rotational mode of the molecule, respectively.
S. Hosokawa, Y. Kawakita, L. Pusztai, K. Ikeda, and T. Otomo
Detailed investigations on short- and intermediate-range structures of Ge-Se glasses near the stiffness transition composition
Journal of Physical Society of Japan 90, 024601-1-12 (2021), doi: 10.7566/JPSJ.90.024601
In addition to previous anomalous x-ray scattering, neutron diffraction data are included in the reverse Monte Carlo modeling, and the relationship between the stiffness transition and hyper-ordered structures is clarified in Ge-Se glasses.
J. R. Stellhorn, H. Takakura, S. Hosokawa, and K. Hayashi
The local structure of the Fibonacci chain and the Penrose tiling from x-ray fluorescence holography
Materials Transactions 62, 342-349 (2021), doi: 10.2320/matertrans.MT-MB2020005
Jens estimates atomic images of typical quasicrystal by fluorescence x-ray holography.
S. Hosokawa, J.-F. Bérar, N. Boudet, W.-C. Pilgrim, L. Pusztai, S. Hiroi, S. Kohara, H. Kato, H. E. Fischer, and A. Zeidler
Detailed structural analysis of amorphous Pd40Cu40P20: Comparison with the metallic glass Pd40Ni40P20 from the viewpoint of glass forming ability
Journal of Non-Crystalline Solids 555, 120536-1-10 (2021), doi: 10.1016/j.jnoncrysol.2020.120536
Structure of amorphous Pd40Cu40P20 is obtained by a combination of anomalous x-ray scattering, neutron diffraction, and reverse Monte Carlo calculation, and the relationship with glass-forming ability is discussed in comparison to Pd40Ni40P20 glass.
S. Hosokawa
Transverse Acoustic Phonon Excitations in Liquid Metals
Zeitschrift für Physikalische Chemie 235, 99-115 (2021), doi: 10.1515/zpc-2020-1626
Transverse excitations in liquid metals are reviewed.
J. R. Stellhorn, S. Hosokawa, B. Kaiser, K. Kimura, N. Boudet, N. Blanc, H. Tajiri, S. Kohara, and W.-C. Pilgrim
The structure of the amorphous (GeTe)1−x(Sb2Te3)x system and implications for its phase-change properties
Zeitschrift für Physikalische Chemie 235, 141-167 (2021), doi: 10.1515/zpch-2020-1633
Jens obtained the local structures of amorphous (GeTe)1−x(Sb2Te3)x phase change materials by anomalous x-ray scattering and reverse Monte Carlo calculation.
# Conference Proceedings papers (2)
S. Hosokawa, J. R. Stellhorn, Y. Onodera, S. Kohara, H. Tajiri, E. Magome, L. Pusztai, K. Ikeda, T. Otomo, M. Krbal, and T. Wagner
Local- and Intermediate-Range Atomic Order in Ga2Ge3Se9 Glass: Complementary Use of X-Rays and Neutrons
JPS Conference Proceedings 33, 011069-1-6 (2021), doi: 10.7566/JPSCP.33.011069
The 3rd J-PARC Symposium (J-PARC2019) (23-26 September 2019, Tsukuba)
Partial structures of Ga-Ge-Se infrared glass fiber materials are precisely determined by a combination of neutron diffraction, anomalous x-ray scattering, and reverse Monte Carlo calculation.
S. Hosokawa, Y. Kawakita, J. R. Stellhorn, L. Pusztai, N. Blanc, N. Boudet, K. Ikeda, and T. Otomo
Local- and Intermediate-Range Order in Room Temperature Superionic Conducting Ag-GeSe3 Glasses
JPS Conference Proceedings 33, 011070-1-7 (2021), doi: 10.7566/JPSCP.33.011070
The 3rd J-PARC Symposium (J-PARC2019) (23-26 September 2019, Tsukuba)
Partial structures of Ag-GeSe3 room-temperature superionic glass materials are precisely determined by a combination of neutron diffraction, anomalous x-ray scattering, and reverse Monte Carlo calculation.
2020 (11 papers)
# Original papers (10)
J. R. Stellhorn, S. Hosokawa, N. Happo, K. Hayashi, T. Matsushita, N. Kawaguchi, and T. Yanagida
Local structure of the impurity site in Nd:LaF3 by x‐ray fluorescence holography
Physica Status Solidi B 257, 2000310-1-6 (2020), doi: 10.1002/pssb.202000310
X-ray fluorescence holography data analysis of Nd:LaF3 is performed by Jens, and it is found that impurity Nd atoms completely replaced by La host atoms. (250)
K. Hayashi, C. Lu, A. K. R. Ang, K. Ohwada, Y. Xie, W. Hu, T. Matsushita, N. Happo, S. Hosokawa, A. A. Bokov, and Z.-G. Ye
Local structure analysis around Ti in lead zirconate-titanate by X-ray fluorescence holography
Physica Status Solidi B 257, 2000191-1-5 (2020), doi: 10.1002/pssb.202000191
The origin of the ferroelectricity of Pb(Zr0.7Ti0.3)O3 is investigated by Prof. Hayashi of Nagoya Institute of Technology by measuring the local structure around the Ti atom with Ti K𝛼 X-ray fluorescence holography.
M. Inui, K. Matsuda, S. Hosokawa, Y. Nakajima, S. Tsutsui, D. Ishikawa, and A. Q. R. Baron
Sound Speed in Glassy AsxSe1−x (x=0.4, 0.5 and 0.6) by Inelastic X-ray Scattering
Physica Status Solidi B 257, 2000134-1-5 (2020), doi: 10.1002/pssb.202000134
Prof. Inui investigates phonon excitations in As-Se glasses by inelastic x-ray scattering at SPring-8/BL35XU.
S. Hosokawa, S. Inaba, H. Uchiyama, and S. Tsutsui
Dynamics of an anisotropic metaphosphate LiNaKCsPO3 glass by inelastic X-ray scattering
Physica Status Solidi B 257, 2000172-1-7 (2020), doi: 10.1002/pssb.202000172
Dynamics of anisotropic alkali-phosphate glass is investigated by inelastic x-ray scattering at SPring-8/BL35XU.
J. R. Stellhorn, B. Paulus, S. Hosokawa, W.-C. Pilgrim, N. Boudet, N. Blanc, H. Ikemoto, S. Kohara, and Y. Sutou
Structure of amorphous Cu2GeTe3 and the implications for its phase-change properties
Physical Review B 101, 214110-1-10 (2020), doi: 10.1103/PhysRevB.101.214110
Jens obtained atomic structures of new amorphous phase-change material Cu2GeTe3 by anomalous x-ray scattering and XAFS.
B. Klee, B. Paulus, S. Hosokawa, M. Wharmby, E. Dornsiepen, S. Dehnen, and W.-C. Pilgrim
Generating large starting configurations for molecular Reverse Monte Carlo modelling of an unique non-linear optical amorphous solid
Journal of Physics Communications 4, 035004-1-7 (2020), doi: 10.1088/2399-6528/ab756c
Benjamin at the University of Marburg analyzes the structure of unique amorphous non-linear optical solid by molecular reverse Monte Carlo modeling.
S. Hosokawa, N. Happo, K. Hayashi, K. Kimura, T. Matsushita, J. R. Stellhorn, M. Mizumaki, M. Suzuki, H. Sato, and K. Hiraoka
Valence-selective local atomic structures on an YbInCu4 valence transition material by x-ray fluorescence holography
The Journal of Physical Society of Japan 89, 034603-1-5 (2020) doi: 10.7566/JPSJ.89.034603
XFH measurements were carried out on a YbInCu4 valence transition material, and succeed in drawing atomic images with different valencies.
M. Inui, Y. Kajihara, Y. Tsuchiya, S. Hosokawa, K. Matsuda, H. Uchiyama, S. Tsutsui, and A. Q. R. Baron
Peculiar temperature dependence of dynamical sound speed in liquid Se50Te50 by inelastic x-ray scattering
Journal of Physics: Condensed Matter 32, 214003-1-8 (2020) doi: 10.1088/1361-648X/ab6d8e
Prof. Inui of Hiroshima University found a peculiar behavior in the temperature dependence of phonon dispersions in liquid Se50Te50 by inelastic X-ray scattering experiments.
K. Kimura, K. Yamamoto, K. Hayashi, S. Tsutsui, N. Happo, S. Yamazoe, H. Miyazaki, S. Nakagami, J. R. Stellhorn, S. Hosokawa, T. Matsushita, H. Tajiri, A. K. R. Ang, and Y. Nishino
Local structure and atomic dynamics in Fe2VAl Heusler-type thermoelectric material: The effect of heavy element doping
Physical Review B 101, 024302-1-10 (2020) doi: 10.1103/PhysRevB.101.024302
Dr. Kimura of Nagoya Institute of Technology studied on the structure and dynamics of Fe2VAl thermoelectric material.
J. R. Stellhorn, S. Hosokawa, and S. Kohara
Local- and intermediate-range structures on ordinal and exotic phase-change materials by anomalous x-ray scattering
Analytical Sciences 36, 5-16 (2020) doi: 10.2116/analsci.19SAR02
Amorphous structures of typical phase change materials studied by anomalous x-ray scattering is reviewed.
# Review papers in Japanese (1)
S. Hosokawa, N. Happo, T. Matsushita, and K. Hayashi
X-ray fluorescence holography capable of valence-selective structural analysis: Application to an YbInCu4 valence transition material
Journal of the Crystallographic Society of Japan 62, 80-81 (2020) doi: 10.5940/jcrsj.62.80
Recent study on the valence-selective x-ray fluorescence holography is reviewed.
2019 (10 papers)
# Original papers (5)
S. Hosokawa, N. Happo, T. Matsushita, J. R. Stellhorn, K. Kimura, and K. Hayashi
Valence-selective local atomic structures in inorganic materials by X-ray fluorescence holography
Japanese Journal of Applied Physics 58, 120601-1-9 (2019) doi: 10.7567/1347-4065/ab5258
Some experimental results of valence-selective function in X-ray fluorescence holography are reviewed.
S. Hosokawa, M. Inui, T. Bryk, I. Mryglod, W.-C. Pilgrim, Y. Kajihara, K. Matsuda, Y. Ohmasa, and S. Tsutsui
Detection of collective optic excitations in molten NaI
Condensed Matter Physics 22, 43602 (2019) doi: 10.5488/CMP.22.43602
Longitudinal optic phonons are found in inelastic x-ray scattering spectra on molten NaI, which are in good agreement with results of ab initio molecular dynamic simulation.
S. Hosokawa, J.-F. Bérar, N. Boudet, W.-C. Pilgrim, L. Pusztai, S. Hiroi, K. Maruyama, S. Kohara, H. Kato, H. E. Fischer, and A. Zeidler
Partial structure investigation of the traditional bulk metallic glass Pd40Ni40P20
Physical Review B 100, 054204-1-12 (2019) doi: 10.1103/PhysRevB.100.054204
Atomic structure of a traditional metallic glass is investigated by using synchrotron x-ray and neutron diffraction, and the data are analyzed by using several analytical methods and data-driven science.
K. Kudo, S. Ioka, N. Happo, H. Ota, Y. Ebisu, K. Kimura, T. Hada, T. Kimura, H. Tajiri, S. Hosokawa, K. Hayashi, and M. Nohara
Impact of local atomic fluctuations on superconductivity of Pr-substituted CaFe2As2 studied by x-ray fluorescence holography
The Journal of Physical Society of Japan 88, 063704-1-5 (2019) doi: 10.7566/JPSJ.88.063704
Prof. Kudo of Okayama University clarifies lattice distortions in a FeAs-based superconductor by x-ray fluorescence holography.
M. Inui, Y. Kajihara, S. Hosokawa, K. Matsuda, Y. Tsuchiya, S. Tsutsui, and A. Q. R. Baron
Dynamical sound speed and structural inhomogeneity in liquid Te studied by inelastic x-ray scattering
Journal of Non-Crystalline Solids X 1, 100006-1-6 (2019) doi: 10.1016/j.nocx.2018.100006
An inelastic x-ray scattering experiment is carried out on liquid Te by Professor Inui of Hiroshima University to investigate anomalies of sound velocity and structural inhomogeneity in this liquid.
# Conference Proceedings papers (4)
S. Shirakata, N. Happo, and S. Hosokawa
X-ray fluorescence holography analysis of local structure in CuInSe2 and CuGaSe2
Physica Status Solidi A 216, 1800971-1-6 (2019). doi: 10.1002/pssa.201800971
Professor Shirakata clarifies the local structure of solar cell material by x-ray fluorescence holography
J. R. Stellhorn, S. Hosokawa, and E. Magome
Anomalous x-ray scattering experiments for disordered materials at the SAGA Light Source
AIP Conference Proceedings 2054, 050012-1-7 (2019), doi: 10.1063/1.5084630
Details of anomalous x-ray scattering method at Saga Light Source are introduced by Jens.
K. Kimura, K. Hayashi, L. V. Yashina, N. Happo, T. Nishioka, Y. Yamamoto, Y. Ebisu, T. Ozaki, S. Hosokawa, T. Matsushita and H. Tajiri
Local structural analysis of In-doped Bi2Se3 topological Insulator using x-ray fluorescence holography
Surface and Interface Analysis 51, 51-55 (2019), doi: 10.1002/sia.6544
Local structures of In-dioped Bi2Se3 are investigated using x-ray fluorescence holography by Dr. Kimura of Nagoya Institute of Technology.
J. R. Stellhorn, S. Hosokawa, N. Happo, H. Tajiri, T. Matsushita, K. Kaminaga, T. Fukumura, T. Hasegawa, K. Kimura, and K. Hayashi
Application of x-ray fluorescence holography to the analysis of the interior and surface of an yttrium oxide thin film
Surface and Interface Analysis 51, 70-73 (2019), doi: 10.1002/sia.6550
Holograms with difference valences in a Y oxide thin film are analyzed by Jens.
# Review papers in Japanese (1)
S. Hosokawa and M. Inui
Nano-Scale Atomic Structures Appeared in Liquids – Atomic Dynamics Studies by Inelastic X-ray Scattering
Butsuri-Membership Journal of Physical Society of Japan 74, 612-620 (2019)
Recent progress in liquid study by inelastic x-ray scattering is reviewed.
2018 (20 papers)
# Original papers (17)
M. Inui, K. Suekuni, Y. Kajihara, S. Hosokawa, T. Takabatake, Y. Nakajima, K. Matsuda, K. Ohara, H. Uchiyama, and S. Tsutsui
Static and dynamic structures of liquid Ba8Ga16Sn30: a melt of the thermoelectric clathrate compounds
Journal of Physics: Condensed Matter 30, 455101-1-10 (2018), doi: 10.1088/1361-648X/aae3f3
An inelastic x-ray scattering experiment is carried out on liquid Ba8Ga16Sn30 clathrate compounds by Professor Inui of Hiroshima University and coworkers to investigate phonon dynamics in this liquid.
B. Paulus, S. Hosokawa, J. R. Stellhorn, B. Klee, K. M. Sowa, K. Kudo, N. Nishimoto, H. Ota, M. Nohara, M. de Boissieu, N. Blanc, N. Boudet, and W.-C. Pilgrim
Atomic imaging of iron-based superconductor parent FeTe using x-ray fluorescence holography
Physica Status Solidi B 255(11), 1800200-1-5 (2018), doi: 10.1002/pssb.201800200
Local structures of FeTe superconductor parent alloy are investigated using x-ray fluorescence holography by Benedict of University of Marburg.
T. Nishioka, Y. Yamamoto, K. Kimura, K. Hagihara, H. Izuno, N. Happo, S. Hosokawa, E. Abe, M. Suzuki, T. Matsushita and K. Hayashi
In-plane positional correlations among dopants in 10H type long period stacking ordered Mg75Zn10Y15 alloy studied by X-ray fluorescence holography
Materialia 3, 256–259 (2018), doi: 10.1016/j.mtla.2018.09.002
Cluster structures of Mg75Zn10Y15 alloys were investigated using x-ray fluorescence holography by Dr. K. Kimura of Nagoya Institute of Technology.
J. R. Stellhorn, Y. Ideguchi, K. Kimura, K. Hayashi, N. Happo, M. Suzuki, H. Okazaki, A. Yamashita, Y. Takano, and S. Hosokawa
Local structure of FeSe0.4Te0.6 by low‐temperature x‐ray fluorescence holography
Physica Stutus Solidi B 255(11), 1800093-1-5 (2018), doi: 10.1002/pssb.201800093
Local structures of FeSe0.4Te0.6 around the Fe atoms are investigated using x-ray fluorescence holography by Jens.
S. Hosokawa, H. Sato, M. Nakatake, and H. Kato
Electronic structures and heterogeneity of Zr-Cu-Ag metallic glasses
Journal of Non-Crystalline Solids 498, 281-287 (2018), doi: 10.1016/j.jnoncrysol.2018.06.036
Electronic structures in Zr-Cu-Ag glasses are investigated using photoemission spectroscopy at HiSOR.
M. Inui, A. Q. R. Baron, Y. Kajihara, K. Matsuda, S. Hosokawa, K. Kimura, Y. Tsuchiya, F. Shimojo, M. Yao, S. Tsutsui, D. Ishikawa, and K. Tamura
Viscoelastic anomaly accompanying anti-crossing behaviour in liquid As2Se3
Journal of Physics: Condensed Matter 30, 28LT02 (2018), doi: 10.1088/1361-648X/aacab5
An inelastic x-ray scattering experiment is carried out on liquid As2Se3 by Professor Inui of Hiroshima University and coworkers to investigate a behavior of viscoelastic phonons in this liquid.
S. Hosokawa, J. R. Stellhorn, B. Paulus, K. Maruyama, K. Kobayashi, H. Okuda, M. Yamasaki, Y. Kawamura, and H. Sato
The seeds of Zn6Y8 L12-type clusters in amorphous Mg85Zn6Y9 alloy investigated by photoemission spectroscopy
Journal of Alloys and Compounds 764, 431-436 (2018), doi: 10.1016/j.jallcom.2018.06.012
Electronic structures in amorphous Mg alloys are investigated using photoemission spectroscopy at HiSOR, and it is found that the seeds of the impurity clusters are present even in the amorphous phase.
S. Hosokawa, J. R. Stellhorn, K. Hayashi, and T. Matsushita
Applications of a L1-regularized linear regression to x-ray fluorescence holography data of functional materials
Physica Status Solidi B 255(11), 1800089-1-13 (2018), doi: 10.1002/pssb.201800089
The excellent data analysis of x-ray fluorescence holography using a sparse modeling is reviewed.
S. Hosokawa, J. R. Stellhorn, B. D. Klee, W.-C. Pilgrim, H. Okuda, M. Yamasaki, Y. Kawamura, N. Blanc, and N. Boudet
Seeds of L12 clusters in amorphous Mg85Zn6Y9 alloy observed via anomalous x-ray scattering
Applied Physics Express 11, 071402 (2018), doi: 10.7567/APEX.11.071402
Atomic structures in amorphous Mg alloys are investigated using anomalous x-ray scattering at ESRF, and it is found that the seeds of the impurity clusters are present even in the amorphous phase.
S. Hosokawa, K. Maruyama, K. Kobayashi, J. R. Stellhorn, B. Paulus, A. Koura, F. Shimojo, T. Tsumuraya, M. Yamasaki, Y. Kawamura, S. Yoshioka, and H. Sato
Electronic structures and impurity cluster features in Mg-Zn-Y alloys with a synchronized long-period stacking ordered phase
Journal of Alloys and Compounds 762, 797-805 (2018), doi: 10.1016/j.jallcom.2018.05.163
Electronic structures of Mg alloys are investigated using photoemission spectroscopy at HiSOR, and it is found that the Y element is heterogeneous having three chemical sites.
B. D. Klee, E. Dornsiepen, J. R. Stellhorn, B. Paulus, S. Hosokawa, S. Dehnen, and W.-C. Pilgrim
Structure determination of a new molecular white-light source
Physica Status Solidi B 255(11), 1800083-1-6 (2018), doi: 10.1002/pssb.201800083
Benjamin of University of Marburg investigates the structure of amorphous (PhSn)4S6 (Ph: Phenyl) by x-ray scattering experiment and reverse Monte Carlo calculation.
M. Inui, A. Koura, Y. Kajihara, S. Hosokawa, A. Chiba, K. Kimura, F. Shimojo, S. Tsutsui, and A. Q. R. Baron
Peculiar atomic dynamics in liquid GeTe with asymmetrical bonding: Observation by inelastic x-ray scattering
Physical Review B 97, 174203-1-10 (2018), doi: 10.1103/PhysRevB.97.174203
An inelastic x-ray scattering experiment is carried out on liquid GeTe by Professor Inui of Hiroshima University and coworkers to investigate an asymmetrical bond in this liquid.
J. R. Stellhorn, Y. Ideguchi, S. Hosokawa, N. Happo, T. Matsushita, K. Yubuta, M. Suzuki, H. Ishii, Y.-F. Liao, K. Kimura, and K. Hayashi
Temperature dependent local atomic structures in the traditional Fe65Ni35 Invar alloy by x-ray fluorescence holography
Surface and Interface Analysis 50, 790-794 (2018), doi: 10.1002/sia.6474
Temperature dependence of atomic structures in a Fe-Ni Invar alloy is observed by fluorescence x-ray holography.
N. Happo, T. Hada, A. Kubota, Y. Ebisu, S. Hosokawa, K. Kimura, H. Tajiri, T. Matsushita, and K. Hayashi
Improvement of graphite crystal analyzer for light elements on x-ray fluorescence holography measurement
Japanese Journal of Applied Physics 57, 058006-1-3 (2018), doi: 10.7567/JJAP.57.058006
Professor Happo of Hiroshima City University shows the development of the holography apparatus for light elements.
T. Matsushita, T. Muro, F. Matsui, N. Happo, S. Hosokawa, K. Ohoyama, A. Sato-Tomita, Y. C. Sasaki, and K. Hayashi
Principle and reconstruction algorithm for atomic-resolution holography
Journal of the Physical Society of Japan 87, 061002-1-11 (2018), doi: 10.7566/JPSJ.87.061002
Dr. Matsushita of JASRI reviews the principle of the atomic resolution holography and the algorithm of image reconstruction.
S. Hosokawa, K. Kimura, J. R. Stellhorn, K. Yoshida, K. Hagihara, H. Izuno, M. Yamasaki, Y. Kawamura, Y. Mine, K. Takashima, H. Uchiyama, S. Tsutsui, A. Koura, and F. Shimojo
Phonon excitations in a single crystal Mg85Zn6Y9 with a synchronized long-period stacking ordered phase
Acta Materialia 146, 273-279 (2018), doi: 10.1016/j.actamat.2017.12.053
The impurity effect in the elastic properties of Mg alloy was sturdied by inelastic x-ray scattering experiment.
S. Hosokawa, J. R. Stellhorn, H. Ikemoto, K. Mimura, K. Wakita, and N. Mamedov
Lattice distortions in TlInSe2 thermoelectric material studied by x-ray absorption fine structure
Physica Status Solidi A 215(1), 1700416-1-8 (2018), doi: 10.1002/pssa.201700416
This paper was studied on a commensurate-incommensurate transition in TlInSe2 thermoelectric material by an XAFS experiment.
# Conference Proceedings papers (1)
B. D. Klee, J. R. Stellhorn, M. Krbal, N. Boudet, G. Chahine, N. Blanc, W.-C. Pilgrim, T. Wagner, and S. Hosokawa
Distinguishing the local environments of Ga and Ge in amorphous (Ga2Se3)0.25(GeSe2)0.75 by anomalous X-ray scattering
Chalcogenide Letters 15, 1-6 (2018), doi: N/A
Local structures of a Ga-Ge-Se glass were investigated by anomalous x-ray scattering at ESRF, which was presented at 8th International Conferece on Amorphous and Nano-Structures Chalcogenides by Benjamin of University of Marburg.
# Review papers in Japanese (2)
S. Hosokawa, K. Hayashi, K. Kimura, N. Happo, and T. Matsushita
Progress of Three-Dimensional Atomic Image Investigations by X-Ray Fluorescence Holography
Vacuum and Surface Science 61, 784-789 (2018)
Recent progress of x-ray fluorescence holography is reviewed.
S. Hosokawa
Impurity Position in a Mn-Doped Bi2Te3 Topological Insulator Investigated by X-Ray Fluorescence Holography
Photon Factory Highlight 2017.
A study of x-ray fluorescence holography on Mn doped Bi2Te3 at PF is reviewed.
2017 (# papers)
Original papers (3)
S. Hosokawa, J. R. Stellhorn, T. Matsushita, N. Happo, K. Kimura, K. Hayashi, Y. Ebisu, T. Ozaki, H. Ikemoto, H. Setoyama, T. Okajima, Y. Yoda, H. Ishii, Y.-F. Liao, M. Kitaura, and M. Sasaki
Impurity position and lattice distortion in a Mn doped Bi2Te3 topological insulator investigated by x-ray fluorescence holography and x-ray absorption fine structure
Physical Review B 96, 214207-1-12 (2017), doi: 10.1103/PhysRevB.96.214207
Mnを添加したBi2Te3トポロジカル絶縁体の不純物の位置についての蛍光X線ホログラフィーとXAFSによって決定したものです。
J. R. Stellhorn, S. Hosokawa, N. Happo, H. Tajiri, T. Matsushita, K. Kaminaga, T. Fukumura, T. Hasegawa, and K. Hayashi
A valence-selective x-ray fluorescence holography study of an yttrium oxide thin film
Journal of Applied Crystallography 50, 1583–1589 (2017), doi: 10.1107/S1600576717012821
Jens君を中心にイットリウムの2価と3価のまわりの原子配列が蛍光X線ホログラフィーで区別できることを示したものです。
K. Hayashi, K. Ohoyama, N. Happo, T. Matsushita, S. Hosokawa, M. Harada, Y. Inamura, H. Nitani, T. Shishido, and K. Yubuta
Multiple-wavelength neutron holography with pulsed neutrons
Science Advances 3, e1700294-1-7 (2017), doi: 10.1126/sciadv.1700294
名古屋工大の林さんと茨城大学の大山さんがまとめられました。大型パルス中性子源J-PARCの物質・生命科学実験施設（MLF）のBL10ビームラインで、中性子ホログラフィー実験を行ったものです。
K. Yoshida, N. Fukuyama, T. Yamaguchi, S. Hosokawa, H. Uchiyama, S. Tsutsui, and A. Q. R. Baron
Inelastic X-ray scattering on liquid benzene analyzed using a generalized Langevin equation
Chemical Physics Letters 680, 1-5 (2017), doi: 10.1016/j.cplett.2017.05.005
福岡大学の吉田さんがSPring-8のBL35XUの高分解能非弾性X線散乱装置を用いて、液体ベンゼンのフォノンダイナミクスをまとめました。
T. Yamamoto, K. Hayashi, N. Happo, S. Hosokawa, and H. Tajiri
Local atomic structure near a Nb atom in aged β–Ti alloys
Acta Materialia 131, 534-542 (2017), doi: 10.1016/j.actamat.2017.03.048
宇都宮大学の山本君がまとめたもので、SPring-8のBL39XUやBL13XU、およびPF-KEKのBL6Cで、β-Ti構造を安定化させるNb元素のまわりの局所構造を蛍光X線ホログラフィー実験で解明したものです。
K. Kimura, K. Hayashi, K. Hagihara, H. Izuno, N. Happo, S. Hosokawa, M. Suzuki, and H. Tajiri
In-plane disordering of Zn-Y clusters in single crystal Mg85Zn6Y9 alloy studied by X-ray fluorescence holography
Materials Transaction 58, 539-542 (2017), doi:10.2320/matertrans.M2016459
名工大の木村君がMgLPSO合金単結晶の蛍光X線ホログラフィーの結果をまとめたものです。
・国際会議抄録論文（4編）
M. Inui, Y. Kajihara, S. Munejiri, S. Hosokawa, A. Chiba, K. Ohara, S. Tsutsui, and A. Q. R. Baron
Asymmetrical bonding in liquid Bi disentangled by inelastic X-ray scattering
広島大学の乾君を中心にして液体BiのダイナミクスをSPring-8/BL35XUででX線非弾性散乱によって研究した結果を国際会議LAM16の抄録論文としてまとめたものです。
M. Inui, Y. Kajihara, K. Kimura, K. Matsuda, T. Miyatake, A. Chiba, S. Hosokawa, S. Tsutsui, and A. Q. R. Baron
Dispersion relations of the acoustic modes in divalent liquid metals
広島大学の乾君を中心にして2価液体金属CaやCdのダイナミクスをSPring-8/BL35XUででX線非弾性散乱によって研究した結果を国際会議LAM16の抄録論文としてまとめたものです。
S. Shirakata, Y. Kitamura, N. Happo, S. Hosokawa, and K. Hayashi
Local structure analysis of Cu(In,Ga)Se2 by x-ray fluorescence holography
Physica Status Solidi C 14, 1600171-1-4 (2017), doi:10.1002/pssc.201600171
愛媛大学の白方さんがまとめられた国際会議ICTMC20の抄録論文です。PF-KEKのBL6Cビームラインで、太陽電池材料の局所構造を蛍光X線ホログラフィー実験で解明したものです。
・紀要（1編）
S. Hosokawa and J. R. Stellhorn
Development of anomalous x-ray scattering for partial structure studies of random systems
Physics Reports of Kumamoto University 14, 53-60 (2017)
ESRFやSPring-8を用いたX線異常散乱法について、その技術の進展状況をレビューしました。（英語版）
・日本語解説など（1編）
細川伸也、Jens Rüdiger Stellhorn
ランダム系の部分原子構造研究に用いるX線異常散乱法の進展
日本セラミックス協会誌「セラミックス」52, 341-344 (2017)
ESRFやSPring-8を用いたX線異常散乱法について、その技術の進展状況をレビューしました。
2016年度（6編）
・原著論文（5編）
S. Hosokawa, K. Kimura, M. Yamasaki, Y. Kawamura, K. Yoshida, M. Inui, S. Tsutsui, A. Q. R. Baron, Y. Kawakita, and S. Itoh
Impurity effects in the microscopic elastic properties of polycrystalline Mg-Zn-Y alloys with a synchronized long-period stacking ordered phase
Journal of Alloys and Compounds 695, 426-432 (2017), doi: 10.1016/j.jallcom.2016.10.266
MgLPSO合金多結晶のミクロな弾性的性質へのZn/Y不純物添加効果をX線および中性子非弾性散乱実験で探求した結果です。
Y. Wakabayashi, D. Nakajima, Y. Ishiguro, K. Kimura, T. Kimura, S. Tsutsui, A. Q. R. Baron, K. Hayashi, N. Happo, S. Hosokawa, K. Ohwada, and S. Nakatsuji
Chemical and orbital fluctuations in Ba3CuSb2O9
Physical Review B 93, 245117-1-13 (2016), doi: 10.1103/PhysRevB.93.245117
阪大の若林さんが Ba3CuSb2O9の構造ゆらぎをX線散漫散乱、蛍光X線ホログラフィーおよびX線非弾性散乱で探求した結果です。
K. Kamimura, S. Hosokawa, N. Happo, H. Ikemoto, Y. Sutou, S. Shindo, Y. Saito, and J. Koike
XAFS analysis on amorphous and crystalline new phase change material GeCu2Te3
Journal of Optoelectronics and Advanced Materials 18, 248-253 (2016), doi:なし
上村君が新規相変化材料GeCu2Te3の結晶およびアモルファス状態のXAFSの測定結果をまとめました。
S. Hosokawa, H. Sato, M. Nakatake, and N. Nishiyama
Electronic structures of Pd30Pt17.5Cu32.5P20 bulk metallic glass
Physica Status Solidi B 253, 676–682 (2016), doi: 10.1002/pssb.201552553
Niアレルギーフリーのバルク金属ガラスPd30Pt17.5Cu32.5P20の電子構造を、広島大学HiSORでの光電子分光測定で求めました。
J. R. Stellhorn, S. Hosokawa, W.-C. Pilgrim, N. Blanc, N. Boudet, H. Tajiri, and S. Kohara
Short- and intermediate-range order in amorphous GeTe
Physica Status Solidi B 253, 1038-1045 (2016), doi: 10.1002/pssb.201552559
Jens君が中心となって、相変化材料の基本物質であるGeTeの非結晶状態の原子構造を、ESRFやSPring-8で行ったX線異常散乱と逆モンテカルロ法で明らかにしました。
・国際会議抄録論文（1編）
S. Hosokawa, M. Inui, Y. Kajihara, T. Ichitsubo, K. Matsuda, H. Kato, A. Chiba, K. Kimura, K. Kamimura, S. Tsutsui, H. Uchiyama, and A. Q. R. Baron
Phonon excitations in Pd40Ni40P20 bulk metallic glass by inelastic x-ray scattering
Materials Science Forum 879, 767-772 (2017), doi: 10.4028/www.scientific.net/MSF.879.767
THERMEC‘2016国際会議での招待講演の抄録論文です。 SPring-8のBL35XUビームラインで金属ガラスのX線非弾性散乱実験を行ったものです。
2015年度（24編）
・原著論文（7編）
K. Hayashi, N. Uchitomi, K. Yamagami, A. Suzuki, H. Yoshizawa, J. T. Asubar, N. Happo, and S. Hosokawa
Large As sublattice distortion in sphalerite ZnSnAs2 thin films revealed by x-ray fluorescence holography
Journal of Applied Physics 119, 125703-1-9 (2016), DOI: 10.1063/1.4945004
名古屋工大の林さんが中心となって、蛍光X線ホログラフィーによってZnSnAs2薄膜のZn元素のまわりの原子配列を求めたものです。 今後Mnを添加した高温強磁性半導体研究の基礎となるものです。
M. Inui, Y. Kajihara, K. Ohara, K. Matsuda, D. Ishikawa, and S. Hosokawa
Critical indices 𝜈 and γ experimentally obtained at the liquid-vapor critical point in fluid Hg
Journal of the Physical Society of Japan 85, 035001-1-2 (2016), DOI: 10.7566/JPSJ.85.035001
広島大学の乾君を中心にして流体水銀の臨界定数をSPring-8でX線小角散乱によって求めた結果です。
M. Inui, Y. Kajihara, S. Munejiri, S. Hosokawa, A. Chiba, K. Ohara, S. Tsutsui, and A. Q. R. Baron
Anomalous dispersion of the acoustic mode in liquid Bi
Physical Review B 92, 054206-1-8 (2015), DOI: 10.1103/PhysRevB.92.054206
広島大学の乾先生を中心にして、液体ビスマスの音波励起の異常な振る舞いについて、SPring-8のBL35XUビームラインでX線非弾性散乱実験を行い、その全容を明らかにしました。 また、この論文は広島大学他よりプレスリリースされました。
K. Kimura, K. Matsuda, N. Hiraoka, Y. Kajihara, T. Miyatake, Y. Ishiguro, T. Hagiya, M. Inui, and M. Yao
Inelastic x-ray scattering study on plasmon dispersion in liquid Cs
Journal of the Physical Society of Japan 84, 084701-1-5 (2015), DOI: 10.7566/JPSJ.84.084701
液体Cs中のプラズモン振動をSPring-8のBL12XUビームラインでX線非弾性散乱法によって詳しく調べた結果です。
S. Hosokawa, K. Kamimura, H. Ikemoto, N. Happo, K. Mimura, K. Hayashi, K. Takahashi, K. Wakita, and N. Mamedov
Structural studies on TlInSe2 thermoelectric material by x-ray fluorescence holography, XAFS, and x-ray diffraction
Physica Status Solidi B 252, 1225-1229 (2015), DOI: 10.1002/pssb.201400247
TlInSe2熱電材料の原子配列の温度変化を蛍光X線ホログラフィー、XAFS、およびX線回折を駆使して詳細に調べた結果を報告しました。
W. Hu, K. Hayashi, T. Fukumura, K. Akagi, M. Tsukada, N. Happo, S. Hosokawa, K. Ohwada, M. Takahasi, M. Suzuki, and M. Kawasaki
Spontaneous formation of suboxidic coordination around Co in ferromagnetic rutile Ti1–xCoxO2 (x = 0.05) film
Applied Physics Letters 106, 222403-1-5 (2015), DOI: 10.1063/1.4921847
蛍光X線ホログラフィーで酸化物高温強磁性半導体に潜む亜酸化ナノ構造体を３D原子像化に成功しました。
S. Hosokawa, M. Inui, Y. Kajihara, S. Tsutsui, and A. Q. R. Baron
Transverse excitations in liquid Fe, Cu and Zn
Journal of Physics: Condensed Matter 27, 194104-1-7 (2015), DOI: 10.1088/0953-8984/27/19/ 194104
液体鉄、銅、亜鉛に横波音波が存在し、その励起エネルギーからミクロな弾性的性質を明らかにしました。
・国際会議抄録論文（16編）
W.-C. Pilgrim, S. Hosokawa, K. Hayashi, and P. Korecki
Element Specific Structure Determination Using Modern X-ray and Neutron Techniques
Zeitschrift für Physikalische Chemie 230, 297-299 (2016), DOI: 10.1515/zpch-2016-5001
国際シンポジウムの目的などをまとめたものです。
T. Yamamoto, K. Haysashi, N. Happo, and S. Hosokawa
X-ray fluorescence holography for a Ti–Nb binary alloy consisting of the martensite, austenite and omega phase
Zeitschrift für Physikalische Chemie 230, 509-518 (2016), DOI: 10.1515/zpch-2015-0670
宇都宮大の山本さんが中心となって、 蛍光X線ホログラフィーによってTi-Nb合金のNb元素のまわりの原子配列を求めたものです。
J.-F. Bérar, N. Boudet, N. Blanc, and S. Hosokawa
Resonant scattering in condensed matter, experiments that reveal short to long range atomic order
Zeitschrift für Physikalische Chemie 230, 301-311 (2016), DOI: 10.1515/zpch-2015-0699
Jean-Françoisさんが中心となって、これまでのESRFにおける異常効果を用いた研究をまとめられたものです。
Y. Ideguchi, K. Kamimura, K. Kimura, S. Hosokawa, N. Happo, K. Hayashi, Y. Ebisu, T. Ozaki, J. R. Stellhorn, M. Suzuki, H. Okazaki, A. Yamashita, and Y. Takano
X-ray fluorescence holographic study on high-temperature superconductor FeSe0.4Te0.6
Zeitschrift für Physikalische Chemie 230, 489-498 (2016), DOI: 10.1515/zpch-2015-0671
出口君が中心となって、FeSe0.4Te0.6高温超伝導体のFeのまわりの原子配列を蛍光X線ホログラフィーにより明らかにしました。
S. Hosokawa, J. R. Stellhorn, W.-C. Pilgrim, and J.-F. Bérar
Anomalous x-ray scattering on semiconducting glasses at ESRF: review in recent fifteen years
Zeitschrift für Physikalische Chemie 230, 313-338 (2016), DOI: 10.1515/zpch-2015-0653
ここ15年間にフランスの放射光施設ESRFで行った半導体ガラスのX線異常散乱実験をレビューとしてまとめました。
K. Kamimura, K. Kimura, S. Hosokawa, N. Happo, H. Ikemoto, Y. Sutou, S. Shindo, Y. Saito, and J. Koike
XAFS analysis of crystal GeCu2Te3 phase change material
Zeitschrift für Physikalische Chemie 230, 433-443 (2016), DOI: 10.1515/zpch-2015-0672
上村君が中心となって、GeCu2Te3相変化材料の結晶についてXAFSで求めた最近接原子間距離が回折実験と異なり、アモルファスとほぼ同じであることを明らかにしました。
S. Kohara, K. Ohara, H. Tajiri, C. H. Song. Sakata, T. Usuki, Y. Benino, A. Mizuno, A. Masuno, J. T. Okada, T. Ishikawa, and S. Hosokawa
Synchrotron x-ray scattering measurements of disordered materials
Zeitschrift für Physikalische Chemie 230, 339-368 (2016), DOI: 10.1515/zpch-2015-0654
共同研究者のNIMSの小原さんがSPring-8における非結晶物質の構造解析の現状をレビューしました。
J. R. Stellhorn, S. Hosokawa, W.-C. Pilgrim, Y. Kawakita, K. Kamimura, K. Kimura, N. Blanc, and N. Boudet
Structural aspects of the superionic conduction mechanism in Ag-GeSe3 glasses
Zeitschrift für Physikalische Chemie 230, 369-386 (2016), DOI: 10.1515/zpch-2015-0667
共同研究者のJens君が、X線異常散乱によるAg-GeSe3超イオン導電体ガラスの構造解析の結果が報告しました。
S. Hosokawa, W.-C. Pilgrim, J.-F. Bérar, and P. Boolchand
Local- and intermediate-range structures of As-Se glasses from the stoichiometric to the stiffness transition region
Journal of Non-Crystalline Solids 431, 31-35 (2016), DOI: 10.1016/j.jnoncrysol.2015.04.018
As-Seガラスの原子配列を、ヨーロッパの放射光施設ESRFのビームラインBM02でのX線異常散乱実験と逆モンテカルロ計算の組み合わせによって明らかにし、フランスグループの第一原理計算の結果と比較しました。
J. Stellhorn, S. Hosokawa, Y. Kawakita, D. Gies, W.-C. Pilgrim, K. Hayashi, K. Ohoyama, N. Blanc, and N. Boudet
Local structure of room-temperature superionic Ag-GeSe3 glasses
Journal of Non-Crystalline Solids 431, 68-71 (2016), DOI: 10.1016/j.jnoncrysol.2015.02.027
GeSe3-Ag超イオン導電性ガラスの原子配列を、ヨーロッパの放射光施設ESRFのビームラインBM02でのX線異常散乱実験と逆モンテカルロ計算の組み合わせによって明らかにしました。
T. Terai, A.Toriyama, T. Fukuda, T. Kakeshita, K. Hayashi, N.Happo, and S. Hosokawa
Local structure analysis of incommensurate phase in Ti-42Ni-8Fe(at.%) alloy by X-ray fluorescence holography
Materials Today: Proceedings 2S, S933-S936 (2015), DOI: 10.1016/j.matpr.2015.07.435
大阪大学の寺井さんが中心になって、Ti-Ni-Fe合金の原子構造を蛍光X線ホログラフィーにより観測しました。
M. Inui, Y. Kajihara, K. Kimura, K. Matsuda, K. Ohara, S. Tsutsui, D. Ishikawa, and A. Q. Baron
Inelastic x-ray scattering studies on dynamic structure factor of polymeric liquid Se under pressure
AIP Conference Proceedings 1673, 020002 (2015), DOI: 10.1063/1.4928256
高圧下の液体Seのダイナミクスを、SPring-8のBL35XUビームラインでのX線非弾性実験で明らかにしました。
K. Matsuda, T. Fukumaru, K. Kimura, K. Tamura, M. Katoh, Y. Kajihara, M. Inui, M. Yao, M. Itou, and Y. Sakurai
X-ray Compton scattering experiments for fluid alkali metals at high temperatures and pressures
AIP Conference Proceedings 1673, 020004 (2015), DOI: 10.1063/1.4928258
高温高圧下での流体アルカリ金属の電子状態を、SPring-8のBL08Wビームラインでコンプトン散乱実験で明らかにしました。
Y. Ebisu, K. Hayashi, N. Happo, S. Hosokawa, and T. Ozaki
Local structure analysis of Lanthanum-doped Strontium Titanate by means of x-ray fluorescence holography
ランタンを添加したチタン酸ストロンチウムの原子配列を蛍光X線ホログラフィーで明らかにしました。
S. Hosokawa, M. Yamasaki, Y. Kawamura, M. Inui, Y. Kajihara, S. Tsutsui, and A. Q. R. Baron
Microscopic elastic properties of polycrystalline Mg85Zn6Y9 alloy with long-period stacking ordered 18R phase investigated by inelastic x-ray scattering
Materials Transaction 56, 914-916 (2015), DOI: 10.2320/matertrans.MH201409
LPSO構造を持つMg合金のミクロな弾性的性質を、SPring-8のBL35XUビームラインで、X線非弾性散乱実験により観察した結果です。
S. Hosokawa, J. Stellhorn, W.-C. Pilgrim, N. Boudet, N. Blanc, S. Kohara, H. Tajiri, H. Kato, Y. Kawakita, and T. Otomo
A combination of anomalous x-ray scattering and neutron diffraction for structural characterizations of Zr45Cu45Ag10 metallic glass
JPS Conference Proceedings 8, 031002-1-6 (2015), DOI: 10.7566/JPSCP.8.031002
Zr45Cu45Ag10金属ガラスの構造をX線異常散乱、中性子散乱で測定し、逆モンテカルロ計算を行って個々の元素のまわりの原子配列を明らかにしました。
・日本語解説など（1編）
乾雅祝、 梶原行夫、宗尻修治、細川伸也、千葉文野、尾原幸治、筒井智嗣、アルフレッド・バロン
液体ビスマスの音響モードの奇妙な振舞い
広島大学の乾先生を中心にして、液体ビスマスの音波励起の異常な振る舞いについて、SPring-8のBL35XUビームラインでX線非弾性散乱実験を行い、その全容を明らかにしました。
2014年度（12編）
・原著論文（6編）
S. Hosokawa, H. Sato, K. Mimura, Y. Tezuka, D. Fukunaga, Y. Matsuzaki, and F. Shimojo
Oxygen 2p partial density of states and bond angles around O atoms in SiO2 glass
Journal of the Physical Society of Japan 84, 024605-1-6 (2015), DOI: 10.7566/JPSJ.84.024605
SiO2ガラスの2p部分価電子状態を、PF-KEKのBL2Cビームラインで軟X線発光分光によって調べた結果を、熊本大学下條研究室の行った第一原理分子動力学計算により検証し、Si-O-Si結合角を同定しました。
S. Hosokawa, N. Happo, S. Senba, T. Ozaki, T. Matsushita, A. Koura, F. Shimojo, and K. Hayashi
Local clusters in a distorted rocksalt GeTe crystal found by x-ray fluorescence holography
Journal of the Physical Society of Japan 83, 124602-1-8 (2014), DOI: 10.7566/JPSJ.83.124602
GeTe薄膜単結晶のGeのまわりの局所構造を、PF-KEKのBL6Cビームラインで蛍光X線ホログラフィーによって調べた結果を、熊本大学下條研究室の行った第一原理分子動力学計算により検証しました。
J. Stellhorn, S. Hosokawa, and W.-C. Pilgrim
Microscopic structure analysis in disordered materials using anomalous x-ray scattering
Zeitschrift für Physikalische Chemie 228, 1005–1031 (2014), DOI: 10.1515/zpch-2014-0555
ドイツの共同研究者が、X線異常散乱技術をレビューとしてまとめたものです。
N. Happo, K. Hayashi, S. Senba, H. Sato, M. Suzuki, and S. Hosokawa
Distorted and undistorted atomic sites in a ferromagnetic semiconductor Ge0.6Mn0.4Te film clarified via x-ray fluorescence holography
Journal of the Physical Society of Japan 83, 113601-1-4 (2014), DOI: 10.7566/JPSJ.83.113601
広島市立大学の八方准教授を中心として、希薄磁性半導体Ge0.6Mn0.4TeのGeのまわりではひずみ、Mnのまわりではひずみのないことを蛍光X線ホログラフィーで見出しました。
S. Hosokawa, H. Sato, K. Mimura, Y. Tezuka, D. Fukunaga, K. Shimamura, and F. Shimojo
Oxygen 2p partial density of states in a typical oxide glass B2O3
Journal of the Physical Society of Japan 83, 114601-1-6 (2014), DOI: 10.7566/JPSJ.83.114601
B2O3ガラスの2p部分価電子状態を、PF-KEKのBL2Cビームラインで軟X線発光分光によって調べた結果を、熊本大学下條研究室の行った第一原理分子動力学計算により検証し、B-O-B結合角を同定しました。
K. Hayashi, N. Happo, and S. Hosokawa
Applications of x-ray fluorescence holography to determine local lattice distortions in materials
共同研究者である東北大金研の林好一先生が、蛍光X線ホログラフィーを物質の格子ひずみの決定に用いた最近の研究のレビューを行っています。
W. Hu, K. Hayashi, K. Ohwada, J. Chen, N. Happo, S. Hosokawa, M. Takahasi, A. A. Bokov, and Z.-G. Ye
Acute and obtuse rhombohedrons in the local structures of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3
Physical Review B 89, 140103(R)-1-5 (2014), DOI: 10.1103/PhysRevB.89.140103
多くの共同研究者とともにSPring-8のBL22XUビームラインで、リラクサーの格子が変形していることを蛍光X線ホログラフィー実験によって3次元イメージとして明らかにしたものです。
・国際会議抄録論文（6編）
S. Hosokawa, J. Stellhorn, and W.-C. Pilgrim
Anomalous X-Ray Scattering on Chalcogenide Glasses
MRS Proceedings 1757, mrsf14-1757-uu06-05-1-9 (2015), DOI: 10.1557/opl.2015.49
X線異常散乱法と逆モンテカルロ法によるカルコゲンガラスの部分構造の研究のレビューを行いました。
T. Yamamoto, S. Hosokawa, J.-F. Bérar, N. Boudet, W.-C. Pilgrim, K. Hayashi, and H. Kato
Existence of covalent-like bonding in Pd40Cu20Ge40 metallic glass observed by anomalous x-ray scattering
Journal of Physics: Conference Series 519, 012005-1-4 (2014), DOI: 10.1088/1742-6596/ 519/1/012005
Pd40Cu20Ge40金属ガラスの原子配列を、ヨーロッパの放射光施設ESRFのビームラインBM02でのX線異常散乱実験および逆モンテカルロ計算の組み合わせによって明らかにしました。
S. Hosokawa
Anomalous x-ray scattering investigations on metallic glasses
Materials Science Forum 783-786, 1907-1912 (2014), DOI: 10.4028/www.scientific.net/MSF.783-786.1907
THERMEC‘2013国際会議での招待講演の抄録論文です。フランスの大型放射光施設ESRFのBM02ビームラインを使って行った、金属ガラスのX線異常散乱実験についてレビューをしたものです。
S. Hosokawa, N. Happo, K. Hayashi, A. Ohnishi, M. Kitaura, and M. Sasaki
An x-ray fluorescence holographic study on a Bi2Te3Mn0.1 topological insulator
Journal of Physics: Conference Series 502, 012024-1-4 (2014), DOI: 10.1088/1742-6596/502/1/ 012024
PF-KEKのBL6Cビームラインで、トポロジカル絶縁体Bi2Te3Mn0.1のMnのまわりの原子イメージを、蛍光X線ホログラフィーで観測し、Mn不純物はBiあるいはTeと置換して結晶内に存在することがわかりました。
S. Hosokawa, J-F. Bérar, N. Boudet, S. Kohara, J. Stellhorn, W.-C. Pilgrim, A. Zeidler, H. Kato, Y. Kawakita, and T. Otomo
A combination of anomalous x-ray scattering and neutron diffraction for structural characterizations of Zr63Ni25Al12 metallic glass
Journal of Physics: Conference Series 502, 012023-1-4 (2014), DOI: 10.1088/1742-6596/502/1/ 012023
Zr63Ni25Al12金属ガラスの原子配列を、ヨーロッパの放射光施設ESRFのビームラインBM02においてX線異常散乱実験、J-PARCでの中性子回折実験、および逆モンテカルロ計算の組み合わせによって明らかにしました。
S. Kohara, H. Tajiri, C. H. Song, K. Ohara, L. Temleitner, K. Sugimito, A. Fujiwara, L. Pusztai, T. Usuki, S. Hosokawa, Y. Benino, N. Kitamura, and K. Fukumi
Anomalous x-ray scattering studies of functional disordered materials
Journal of Physics: Conference Series 502, 012014-1-6 (2014), DOI: 10.1088/1742-6596/502/1/ 012014
共同研究者でJASRI/SPring-8の小原真司さんがSPring-8におけるX線異常散乱実験の現状をレビュー論文としてまとめられたものです。
F. Kakinuma, S. Hosokawa, H. Ikemoto, S. Kohara and Y. Tsuchiya
A structural study of liquid Te-rich Si-Te alloys
Journal of Physics: Conference Series 502, 012029-1-4 (2014), DOI: 10.1088/1742-6596/502/1/ 012029
新潟工科大学の柿沼先生が中心となってSPring-8のBL04B2ビームラインで、液体Si-Te混合系の原子配列を高エネルギーX線回折実験によって求めたものです。
2013年度（７編）
・原著論文（４編）
S. Hosokawa, A. Koura, J.-F. Bérar, W.-C. Pilgrim, S. Kohara, and F. Shimojo
Does the 8-N bonding rule break down in As2Se3 glass?
Europhysics Letters 102, 66008-1-6 (2013), DOI: 10.1209/0295-5075/102/66008
As2Se3ガラスのヒ素のまわりの配位数が、ノーベル賞学者Mott教授の予言をかなり超えていることを、ヨーロッパの放射光施設ESRFのビームラインBM02においてX線異常散乱実験で見い出すとともに、下條グループの第一原理計算でも確認した論文です。
S. Hosokawa, N. Happo, T. Ozaki, H. Ikemoto, T. Shishido, and K. Hayashi
Extent and feature of lattice distortions around Ga impurity atoms in InSb single crystal
Physical Review B 87, 094104-1-8 (2013), DOI: 10.1103/PhysRevB.87.094104
InSb結晶にGaSbを少量添加したときにGa原子のまわりがどういうふうに歪むかを、放射光施設KEK-PFにおいて、蛍光X線ホログラフィーで観測した論文です。
W.-C. Pilgrim, J. R. Stellhorn and S. Hosokawa
X-ray and neutron scattering techniques for structure determination in disordered materials: liquids and glasses
Bunsen-Magazin 101, 131-146 (2013), DOI: なし
ドイツ・マルブルク大学の共同研究者W.-C. Pilgrim教授が、非晶質系のX線・中性子線散乱についての共同研究の内容を主に教科書的にレビュー論文としてまとめたものです。大学院生のゼミに使おうかと思っています。
S. Hosokawa, S. Munejiri, M. Inui, Y. Kajihara, W.-C. Pilgrim, Y. Ohmasa, S. Tsutsui, A. Q. R. Baron, F. Shimojo, and K. Hoshino
Transverse excitations in liquid Sn
液体スズ中の横波音波の存在を、SPring-8のBL35XUビームラインでのX線非弾性散乱実験と、広島大学星野グループ・熊本大学下條研究室の行った第一原理分子動力学計算により詳しく調べた論文です。この論文は、インパクトのある論文として、IOP selectに選ばれました。
・国際会議抄録論文（1編）
S. Hosokawa, S. Munejiri, M. Inui, Y. Kajihara, W.-C. Pilgrim, A. Q. R. Baron, F. Shimojo, and K. Hoshino
Transverse excitations in liquid metals
AIP Conference Proceedings 1518, 695-702 (2013), DOI: 10.1063/1.4794661
液体ガリウム、鉄、銅中の横波音波の存在を、SPring-8のBL35XUビームラインでのX線非弾性散乱実験と、広島大学星野グループ・熊本大学下條研究室の行った第一原理計算により詳しく調べた結果をレビューした論文です。
・日本語解説など（２編）
細川伸也 、 八方直久、 林好一
蛍光X線ホログラフィー：回折実験による構造解析の矛盾とその解決
日本表面科学会誌「表面科学」34, 592-597 (2013), DOI: 10.1380/jsssj.34.592
蛍光X線ホログラフィー法でしか観測されない結晶格子の局所的な歪みについて解説しました。
林好一、 八方直久、細川伸也
蛍光X線ホログラフィーによる局所格子ひずみの評価
日本放射光学会誌「放射光」 26, 195-205 (2013), DOI: なし
共同研究者である東北大金研の林好一先生が主としてに書き、共著者となりました。最近の局所的な歪みの論文がいくつか載っています。
2012年度（6編）
・原著論文（３編）
S. Hosokawa, W.-C. Pilgrim, A. Höhle, D. Szubrin, N. Boudet, J.-F. Bérar, and K. Maruyama
Key experimental information on intermediate-range atomic structures in amorphous Ge2Sb2Te5 phase change material
Journal of Applied Physics 111, 083517-1-9 (2012), DOI: 10.1063/1.3703570
DVD材料の非結晶状態の原子配列を放射光X線（フランス・ESRF）を用いて詳しく調べた結果です。
S. Hosokawa, W.-C. Pilgrim, J.-F. Bérar, and S. Kohara
Anomalous X-ray scattering studies on semiconducting and metallic glasses
European Physics Journal SpecialTopics 208, 291–304 (2012), DOI: 10.1140/epjst/e2012-01625 -0
非結晶状態の原子配列を放射光X線（フランス・ESRF）を用いて調べる方法を解説したレビュー論文です。
K. Hayashi, N. Happo, S. Hosokawa, W. Hu, and T. Matsushita
X-ray fluorescence holography
蛍光X線ホログラフィーによる3次元原子イメージングについて解説したレビュー論文です。
・国際会議抄録論文（１編）
S. Hosokawa, J.-F. Bérar, N. Boudet, S. Kohara, W.-C. Pilgrim, M. Joester, J. Stellhorn, A. Zeidler, K. Maruyama, T. Nasu, W. Zhang, and H. Kato
A partial structure factor investigation of the bulk metallic glass Zr63Ni25Al12 as studied by using a combination of anomalous X-ray scattering and reverse Monte Carlo modeling
International Journal of Materials Research 103, 1108–1112 (2012), DOI: 10.3139/146.110774
金属ガラスの原子配列を放射光X線（フランス・ESRF）を用いて詳しく調べた論文です。
・日本語解説など（２編）
八方直久、林好一、細川伸也、仙波伸也
X線ホログラフィーによる添加元素周辺の三次元原子イメージング
放射線 38, 3-8 (2012), DOI: なし
細川伸也
半導体および金属ガラスのX線異常散乱測定
広島工業大学紀要研究編 46, 197-204 (2012), DOI: なし
