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学術論文

  1. Development of instruments for imaging of local magnetic structure by magnetic neutron holography
    2. Tomoya Kanno, Kenji Ohoyama, Hajime Nakada, Yuto Fukui, Kota Yamakawa, Shota Hoshi, Motoki Takano, Yodai Kobayashi, Yuka Tomimatsu, Shingo Takahashi, Takayuki Oku, Takuya Okudaira, Ryuju Kobayashi, Shusuke Takada, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Toetsu Shishido, Keisuke Sato, Koichi Hayashi
    Nucl. Instrum. Mthods Phys Res. Sec A 1064, 169349(1)-(9) (2024)

  2. Atomic imaging of BaTiO3 by multiple-wavelength neutron holography
    3. Kota Yamakawa, Hajime Nakada, Koji Kimura, Kenichi Oikawa, Masahide Harada, Yasuhiro Inamura, Kenji Ohoyama, Koichi Hayashi
    J. Phys. Soc. Jpn. Accepted 2024/07/23

  3. Determination of site occupancy of boron in 6H-SiC by multiple-wavelength neutron holography
    4. K. Hayashi, M. Lederer, Y. Fukumoto, M. Goto, Y. Yamamoto, N. Happo, M. Harada, Y. Inamura, K. Oikawa, K. Ohoyama, and P. Wellmann
    Appl. Phys. Lett. 120, 132101 (2022).

  4. Chemical-Pressure-Induced Point Defects Enable Low Thermal Conductivity for Mg2Sn and Mg2Si Single Crystals
    5. Wataru Saito, Kei Hayashi, Zhicheng Huang, Kazuya Sugimoto, Kenji Ohoyama, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Kouichi Hayashi, Takamichi Miyazaki, Yuzuru Miyazaki
    ACS Applied Energy Materials 5, (2021) 5123-5131

    DOI: 10.1021/acsaem.1c00670

  5. Behavior of Sm in the boron-cage of Sm-doped RB6 (R=Yb,La) observed　by multiple-wavelength neutron holography
    6. S. Uechi, K. Ohoyama,Y. Fukumoto, Y. Kanazawa, N. Happo, M. Harada, Y. Inamura, K. Oikawa, W. Matsuhra, F. Iga, A. K. R. Ang, and K. Hayashi
    Phys. Rev. B 102, (2020)054104(1)-(10).
    DOI:https://doi.org/10.1103/PhysRevB.102.054104

  6. Preparation, thermoelectric properties, and crystal structure of boron-doped Mg2Si single crystals
    7. Kei Hayashi, Wataru Saito, Kazuya Sugimoto, Kenji Ohoyama, Kouichi Hayashi, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, and Yuzuru Miyazaki
    AIP Advances 10, (2020) 035115(1)-(7).
    DOI: https://doi.org/10.1063/1.5143839

  7. Tetragonality induced superconductivity in anti-ThCr2Si2-type RE2O2Bi (RE = rare earth) with Bi square net
    8. Ryosuke Sei, Hideyuki Kawasoko, Kota Matsumoto, Masato Arimitsu, Kyohei Terakado, Daichi Oka, Shintaro Fukuda, Noriaki Kimura, Hidetaka Kasai, Eiji Nishibori, Kenji Ohoyama, Akinori Hoshikawa, Toru Ishigaki, Tetsuya Hasegawa and Tomoteru Fukumura
    Dalton Transactions, 49 (2020) 3321-3325.
    DOI: https://doi.org/10.1039/C9DT04640B

  8. Investigation of magnetism and magnetic structure of anti-ThCr2Si2-type Tb2O2Bi by magnetization and neutron diffraction measurements
    9. Hideyuki Kawasoko1, Kenji Ohoyama2, Ryosuke Sei1,3, Kota Matsumoto1, Daichi Oka1, Akinori Hoshikawa4, Toru Ishigaki4, and Tomoteru Fukumura1,5
    AIP Advances 9, 115301(1)-(4) (2019)
    DOI: 10.1063/1.5126399

  9. A case of multifunctional intermetallic compound: negative thermal expansion coupling with magnetocaloric effect in (Gd,Ho)(Co,Fe)2
    10. Jinyu Hu,1 Kun Lin,1,* Yili Cao,1 Rongjin Huang,2 Takeshi Matsukawa,3 Toru Ishigaki,3 Henry E. Fischer,4 Kenichi Kato,5 Takashi Honda,6 Kazutaka Ikeda,6 Toshiya Otomo,6 Kenji Ohoyama,7 Jinxia Deng,1 Jun Chen,1 Xianran Xing
    Inorg. Chem. Front., 6　(2019) 3146-3151.
    DOI: 10.1039/C9QI00880B

  10. White neutron holography in pulsed neutron facilities (Invited Review Paper)
    11. Kenji Ohoyama, Kouichi Hayashi
    Phys. Status Solidi B 255(2018) 1800143(1)-(9).
    DOI: https://doi.org/10.1002/pssb.201800143

  11. Neutron Diffraction Studies on Valence Ordering Compound YbPd
    12. K. Oyama, M. Sugishima, K. Tanabe, A. Mitsuda, H. Wada, K. Ohoyama, T. Matsukawa, Y. Yoshida, A. Hoshikawa, T. Ishigaki, and K. Iwasa
    J. Phys. Soc. Jpn. 87 (2018)114705(1)-(6). DOI: 10.7566/JPSJ.87.114705

  12. Effects of Fe doping on anomalous specific heat and XAFS oscillation in antiferromagnetic metal Mn3Si
    13. H. Hiraka, K. Ohoyama, M. Kosaka, D. Matsumura
    AIP Advances 8, (2018)101424(1)-(5).
    doi.org/10.1063/1.5042639

  13. Principle and Reconstruction Algorithm for Atomic-Resolution Holography
    14. Tomohiro Matsushita, Takayuki Muro, Fumihiko Matsui,Naohisa Happo, Shinya Hosokawa, Kenji Ohoyama,Ayana Sato-Tomita, Yuji C. Sasaki, and Kouichi Hayashi
    J. Phys. Soc. Jpn. 87 (2018) 061002(1)-(11).
    DOI:10.7566/JPSJ.87.061002

  14. Ready to Roll? Time to Launch POLANO
    15. Tetsuya Yokoo, Shinichi Itoh, Naokatsu Kaneko, Masaki Fujita, Takashi Ino, Manabu Ohkawara, Kenji Ohoyama,　and Masataka Sakaguchi
    AIP Conference Proceedings 1969 (2018)050001(1)-(6).
    / doi/abs/10.7566/JPSJ.87.061002

  15. Multiple-wavelength neutron holography with pulsed neutrons
    16. Kouichi Hayashi, Kenji Ohoyama, Naohisa Happo, Tomohiro Matsushita, Shinya Hosokawa, Masahide Harada, Yasuhiro Inamura, Hiroaki Nitani, Toetsu Shishido, Kunio Yubuta
    Science Advances, 3 (2017) e1700294.(DOI:10.1126/sciadv.1700294.

  16. Crystal structures, magnetic properties, and DFT calculation of B-site defected 12L-perovskites Ba2La2MW2O12 (M = Mn, Co, Ni, Zn).
    17. Yoshihiro Doi, Makoto Wakeshima, Keitaro Tezuka, Yue Jin Shan, Kenji Ohoyama, Sanghyun Lee, Shuki Torii, Takashi Kamiyama and Yukio Hinatsu
    J. Phys.: Condens. Matter 29 (2017) 365802 (11pp)/ DOI: 10.1088/1361-648X/aa7c9b

  17. Local structure of room-temperature superionic Ag-GeSe3 glasses
    18. J. Stellhorn, S. Hosokawa, Y. Kawakita, D. Gies, W.-C. Pilgrim, K. Hayashi, K. Ohoyama, N. Blanc, N. Boudet
    J. Non-Crystalline Solids 431 (2016) 68-71.

  18. Neutron holography and diffuse scattering of palladium hydride
    19. K. Hayashi, K. Ohoyama, S. Orimo, H. Takahashi, and K. Shibata
    Phys. Rev. B 91 (2015) 024102(1)-(7).

  19. Development and demonstration of in-situ SEOP 3He spin filter system for neutron spin analyzer on the SHARAKU polarized neutron reflectometer at J-PARC
    20. H. Hayashida, T. Oku, H. Kira, K. Sakai, M. Takeda, Y. Sakaguchi, T. Ino, T. Shinohara, K. Ohoyama, J. Suzuki, K. Kakurai, M. Mizusawa, N. Miyata, D. Yamazaki, R. Maruyama, K. Soyama, M. Arai
    Journal of Physics: Conference Series, Vol. 528, (2014) 012020(1)-(7).

  20. Novel Magnetic Chiral Structures and Unusual Temperature Hysteresis in the Metallic Helimagnet MnP
    21. T. Yamazaki, Y. Tabata, T. Waki, T. J Sato, M. Matsuura, K. Ohoyama, M. Yokoyama, H. Nakamura
    J. Phys. Soc. Jpn 83(2014) 054711(1)-(8).

  21. Diffusion Path and Conduction Mechanism of Protons in Hydroxyapatite
    22. M. Yashima, N. Kubo, K. Omoto, H. Fujimori, K. Fujii, K. Ohoyama
    J. Phys. Chem. C 118 (2014) 5180-5187.

  22. Polarized-neutron-diffraction study of the microscopic magnetic structure in α''−Fe16N2 nanoparticles
    23. H. Hiraka, K. Ohoyama, Y. Ogata, T. Ogawa, R. Gallage, N. Kobayashi, M. Takahashi, B. Gillon, A. Gukasov, and K. Yamada
    Phys. Rev. B 90 (2014) 134427(1)-(5).

  23. Construction of Polarized Inelastic Neutron Spectrometer in J-PARC
    24. T. Yokoo, K. Ohoyama , S. Itoh, J. Suzuki, K. Iwasa,T. J. Sato, H. Kira,Y. Sakaguchi , T. Ino,T. Oku, K.Tomiyasu, M. Matsuura, H. Hiraka, M. Fujita, H. Kimura, T. Sato, J. Suzuki ,M. Takeda, K. Kaneko, M. Hino, S. Muto
    J. Phys.: Conf. Ser. 502 (2014) 012046-1-5.

  24. Concepts of Neutron Polarisation Analysis Devices for a New Neutron Chopper Spectrometer, POLANO, in J-PARC
    25. K. Ohoyama, T. Yokoo, S. Itoh, T. Ino, M. Ohkawara, T. Oku, S. Tasaki, K. Iwasa, T. J. Sato, S Ishimoto, K. Taketani, H. Kira, Y. Sakaguch, M. Nanbu, H Hiraka, H. M. Shimizu, M. Takeda, M. Hino, K. Hayashi, U. Fliges and P. Hautle
    J. Phys.: Conf. Ser. 502 (2014) 012051-1-4.

  25. Physical Properties of Double Perovskite-type Barium Neodymium Osmate Ba2NdOsO6.
    26. M. Wakeshima, Y. Hinatsu, and K. Ohoyama
    J.Solid State Chem. 197 (2013) 236-241.

  26. Newly Proposed Inelastic Neutron Spectrometer POLANO
    27. T. Yokoo, K.Ohoyama , S. Itoh, J. Suzuki, K. Iwasa,T. J. Sato, H. Kira,Y. Sakaguchi , T. Ino,T. Oku, K.Tomiyasu, M. Matsuura, H. Hiraka, M. Fujita, H. Kimura, T. Sato, J. Suzuki ,M. Takeda, K. Kaneko, M. Hino, S. Muto
    J. Phys. Soc. Jpn.82 (2013) SA035(1)-(5).

  27. Basic Concepts of Polarisation Analysis of Neutron Chopper Spectrometer, POLANO, at J-PARC
    28. K. Ohoyama, T. Yokoo, S. Itoh, J. Suzuki, K. Iwasa, T.J. Sato, H. Kira, Y. Sakaguchi, T. Ino,T. Oku, K. Tomiyasu, M. Matsuura, H. Hiraka, M. Fujita, H. Kimura, T. Sato, J. Suzuki, H.M.Shimizu, T. Arima, M. Takeda, K. Kaneko, M. Hino, S. Muto, H. Nojiri, C.H. Lee, J.G. Park, S. Choi
    J. Phys. Soc. Jpn. 82 (2013) SA036(1)-(6)

  28. Development of a non-adiabatic two-coil spin flipper for a polarised thermal neutron diffractometer with a 3He spin filter
    29. K. Ohoyama, K. Tsutsumi,T. Ino,H. Hiraka,Y. Yamaguchi, H. Kira,T. Oku,Y. Sakaguchi, Y. Arimoto,W. Zhang, H. Kimura, K. Iwasa,M. Takeda, J. Suzuki, K. Yamada, K. Kakurai
    Nucl. Instrum. Meth. Phys. Res. A 680 (2012) 75-81.

  29. Magnetic and Neutron Diffraction Study on Melilite-Type Oxides Sr2MGe2O7 (M = Mn, Co)
    30. T. Endo, Y. Doi, Y. Hinatsu, and K. Ohoyama
    Inorg. Chem. 51 (2012) 3572−3578.

  30. Modified cross-correlation for efficient white-beam inelastic neutron scattering spectroscopy
    31. K. Tomiyasu, M. Matsuura, H. Kimura, K. Iwasa, K. Ohoyama, T. Yokoo,S. Ioth, E. Kudoh,T. Sato,M. Fujita
    Nucl. Instrum. Meth. Phys. Res. A 677 (2012) 89-93

  31. Sr1-xBaxFeO2 (0.4 < x < 1): A New Oxygen-Deficient Perovskite Structure.
    32. Yamamoto T, Kobayashi Y, Hayashi N, Tassel C, Saito T, Yamanaka S, Takano M, Ohoyama K, Shimakawa Y, Yoshimura K, Kageyama H.
    J Am Chem Soc. 134 (2012) 11444-11454.

  32. Emergence of Magnetic Long-range Order in Frustrated Pyrochlore Nd2Ir2O7 with Metal-Insulator Transition
    33. Tomiyasu, K, Matsuhira, K, Iwasa, K , Watahiki, M, Takagi, S ,Wakeshima, M , Hinatsu, Y, Yokoyama, M , Ohoyama, K ,; Yamada, K,
    J. Phys Soc. Jpn. 81 (2012) 034709(1)-(6).


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