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  1. Recent progress of atomic resolution holography: from point defects to defect complexes
    2. Kouichi Hayashi, Kenji Ohoyama, and Tomohiro Matsushita
    Submitted to Applied Physics Express

  2. Crystal structures and phase stability of antiferroelectric R phases in undoped and Ca-modified sodium niobates
    3. Seiyu Aso, Hiroki Matsuo, Yasuhiro Yoneda, Daisuke Morikawa, Kenji Tsuda, Kenji Ohoyama, Toru Ishigaki, and Yuji Noguchi
    Phys. Rev. B 111, 174114 (2025).
    DOI: doi.org/10.1103/PhysRevB.111.174114

  3. Study of local atomic structures of Sm doped YbB6 observed by X-ray fluorescence holography
    4. Yodai Kobayashi, Kenji Ohoyama, Shoichi Uechi, Koji Kimura, Naohisa Happo, Fumitoshi Iga, and Koichi Hayashi
    e-J Surf Sci Nanotechnol. 23, 92-96 (2025).
    DOI: https://doi.org/10.1380/ejssnt.2025-014

  4. Development of instruments for imaging of local magnetic structure by magnetic neutron holography
    5. 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).
    DOI: https://doi.org/10.1016/j.nima.2024.169349

  5. Atomic imaging of BaTiO3 by multiple-wavelength neutron holography
    6. Kota Yamakawa, Hajime Nakada, Koji Kimura, Kenichi Oikawa, Masahide Harada, Yasuhiro Inamura, Kenji Ohoyama, Koichi Hayashi
    J. Phys. Soc. Jpn. J. Phys. Soc. Jpn. 93, 104601(1)-(5) (2024).
    DOI: https://doi.org/10.7566/JPSJ.93.104601

  6. Determination of site occupancy of boron in 6H-SiC by multiple-wavelength neutron holography
    7. 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).

  7. Chemical-Pressure-Induced Point Defects Enable Low Thermal Conductivity for Mg2Sn and Mg2Si Single Crystals
    8. 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

  8. Behavior of Sm in the boron-cage of Sm-doped RB6 (R=Yb,La) observed by multiple-wavelength neutron holography
    9. 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

  9. Preparation, thermoelectric properties, and crystal structure of boron-doped Mg2Si single crystals
    10. 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

  10. Tetragonality induced superconductivity in anti-ThCr2Si2-type RE2O2Bi (RE = rare earth) with Bi square net
    11. 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

  11. Investigation of magnetism and magnetic structure of anti-ThCr2Si2-type Tb2O2Bi by magnetization and neutron diffraction measurements
    12. 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

  12. A case of multifunctional intermetallic compound: negative thermal expansion coupling with magnetocaloric effect in (Gd,Ho)(Co,Fe)2
    13. 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

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

  14. Neutron Diffraction Studies on Valence Ordering Compound YbPd
    15. 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

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

  16. Principle and Reconstruction Algorithm for Atomic-Resolution Holography
    17. 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

  17. Ready to Roll? Time to Launch POLANO
    18. 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

  18. Multiple-wavelength neutron holography with pulsed neutrons
    19. 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.

  19. Crystal structures, magnetic properties, and DFT calculation of B-site defected 12L-perovskites Ba2La2MW2O12 (M = Mn, Co, Ni, Zn).
    20. 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

  20. Local structure of room-temperature superionic Ag-GeSe3 glasses
    21. 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.

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

  22. Development and demonstration of in-situ SEOP 3He spin filter system for neutron spin analyzer on the SHARAKU polarized neutron reflectometer at J-PARC
    23. 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).

  23. Novel Magnetic Chiral Structures and Unusual Temperature Hysteresis in the Metallic Helimagnet MnP
    24. 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).

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

  25. Polarized-neutron-diffraction study of the microscopic magnetic structure in α''−Fe16N2 nanoparticles
    26. 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).

  26. Construction of Polarized Inelastic Neutron Spectrometer in J-PARC
    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.: Conf. Ser. 502 (2014) 012046-1-5.

  27. Concepts of Neutron Polarisation Analysis Devices for a New Neutron Chopper Spectrometer, POLANO, in J-PARC
    28. 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.

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

  29. Newly Proposed Inelastic Neutron Spectrometer POLANO
    30. 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).

  30. Basic Concepts of Polarisation Analysis of Neutron Chopper Spectrometer, POLANO, at J-PARC
    31. 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)

  31. Development of a non-adiabatic two-coil spin flipper for a polarised thermal neutron diffractometer with a 3He spin filter
    32. 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.

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

  33. Modified cross-correlation for efficient white-beam inelastic neutron scattering spectroscopy
    34. 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

  34. Sr1-xBaxFeO2 (0.4 < x < 1): A New Oxygen-Deficient Perovskite Structure.
    35. 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.

  35. Emergence of Magnetic Long-range Order in Frustrated Pyrochlore Nd2Ir2O7 with Metal-Insulator Transition
    36. 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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