研究業績

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Papers

    2022

  1. “Possible helimagnetic order in Co4+-containing perovskites Sr1-xCaxCoO3”
    Hidefumi Takahashi, Masaho Onose, Yasuhito Kobayashi, Takahiro Osaka, Soushi Maeda, Atsushi Miyake, Masashi Tokunaga, Hajime Sagayama, Yuichi Yamasaki, Shintaro Ishiwata APL Materials 10(11) 111116-111116 (2022).
  2. “Physical properties and phase diagram of single crystal REBaMn2O6 (RE = Sm, Eu, Gd, Tb, Dy, and Y)”
    S. Yamada, H. Sagayama, M. Yamazaki, H. Aoki, K. Sugimoto, T. Arima Journal of Solid State Chemistry 315 123504-123504 82022).
  3. “Effect of Co-Substitution on Hydrogen Absorption and Desorption Reactions of YMgNi4-Based Alloys”
    Toyoto Sato, Kazutaka Ikeda, Takashi Honda, Luke L. Daemen, Yongqiang Cheng, Toshiya Otomo, Hajime Sagayama, Anibal J. Ramirez-Cuesta, Shigeyuki Takagi, Tatsuoki Kono, Heena Yang, Wen Luo, Loris Lombardo, Andreas Zuttel, Shin-ichi Orimo The Journal of Physical Chemistry C 126(40) 16943-16951 (2022).
  4. “Anisotropic magnetotransport properties coupled with spiral spin modulation in a magnetic semimetal EuZnGe”
    Takashi Kurumaji, Masaki Gen, Shunsuke Kitou, Hajime Sagayama, Akihiko Ikeda, Taka-hisa Arima Physical Review Materials 6(9) (2022).
  5. “Spin-charge coupling and decoupling in perovskite-type iron oxides (Sr1-xBax)2/3La1/3FeO3”
    M. Onose, H. Takahashi, T. Saito, T. Kamiyama, R. Takahashi, H. Wadati, S. Kitao, M. Seto, H. Sagayama, Y. Yamasaki, T. Sato, F. Kagawa, S. Ishiwata Physical Review Materials 6(9) (2022).
  6. “Complex magnetic phase diagram with a small phase pocket in a three-dimensional frustrated magnet CuInCr4S8”
    M. Gen, H. Ishikawa, A. Ikeda, A. Miyake, Z. Yang, Y. Okamoto, M. Mori, K. Takenaka, H. Sagayama, T. Kurumaji, Y. Tokunaga, T. Arima, M. Tokunaga, K. Kindo, Y. H. Matsuda, Y. Kohama Physical Review Research 4(3) (2022).
  7. “Zoology of Multiple‐ Q Spin Textures in a Centrosymmetric Tetragonal Magnet with Itinerant Electrons”
    Nguyen Duy Khanh, Taro Nakajima, Satoru Hayami, Shang Gao, Yuichi Yamasaki, Hajime Sagayama, Hironori Nakao, Rina Takagi, Yukitoshi Motome, Yoshinori Tokura, Taka‐hisa Arima, Shinichiro Seki Advanced Science 2105452-2105452 (2022).

    8. 2021

  8. “Element dependence of local disorder in medium-entropy alloy CrCoNi”
    N. Hanasaki, M. Oda, K. Niitsu, K. Ehara, H. Murakawa, H. Sakai, H. Nitani, H. Abe, H. Sagayama, H. Uetsuka, T. Karube, H. Inui AIP Advances 11(12) 125216-125216 (2021).
  9. “Antiferromagnetic-to-ferrimagnetic phase transition with large electric-polarization change in a frustrated polar magnet CaBaCo4O7”
    Tsuyoshi Omi, Yoshito Watanabe, Nobuyuki Abe, Hajime Sagayama, Akiko Nakao, Koji Munakata, Yusuke Tokunaga, and Taka-hisa Arima Physical Review B 103(18) 184412-184412 (2021).
  10. “Transverse-type Lattice Modulation in LaO0. 5F0. 5BiS2: Possible Charge Density Wave Formation”
    Joe Kajitani, Ryoko Sagayama, Hajime Sagayama, Keisuke Matsuura, Takumi Hasegawa, Reiji Kumai, Youichi Murakami, Masaaki Mita, Takuya Asano, Ryuji Higashinaka, Tatsuma D. Matsuda, and Yuji Aoki, Journal of the Physical Society of Japan 90(10) 103601-103601 (2021).
  11. “A ring of grids: a giant spin-crossover cluster”
    Takuya Shiga, Minami Tachibana, Hajime Sagayama, Reiji Kumai, Graham N. Newton, Hiroki Oshio and Masayuki Nihei Chemical Communications 79, (2021).
  12. “X-ray Crystal Structure Analysis of Magnetoelectric Metal UNi4B”
    Chihiro Tabata, Hajime Sagayama, Hiraku Saito, Hironori Nakao, and Hiroshi Amitsuka Journal of the Physical Society of Japan 90(6) 064601-064601 (2021).
  13. “High-pressure synthesis of Ba2RhO4, a rhodate analog of the layered perovskite Sr-ruthenate”
    I. Kurata, Jose A. Flores-Livas, H. Sugimoto, H. Takahashi, H. Sagayama, Y. Yamasaki, T. Nomoto, R. Arita, and S. Ishiwata, Physical Review Materials 5(1) 015001-015001 (2021).

    14. 2021

  14. “Topological Nernst Effect of the Two-Dimensional Skyrmion Lattice”
    Max Hirschberger, Leonie Spitz, Takuya Nomoto, Takashi Kurumaji, Shang Gao, Jan Masell, Taro Nakajima, Akiko Kikkawa, Yuichi Yamasaki, Hajime Sagayama, Hironori Nakao, Yasujiro Taguchi, Ryotaro Arita, Taka-hisa Arima, Yoshinori Tokura Physical Review Letters 125(7) (2020).
  15. “Nanometric square skyrmion lattice in a centrosymmetric tetragonal magnet”
    Nguyen Duy Khanh, Taro Nakajima, Xiuzhen Yu, Shang Gao, Kiyou Shibata, Max Hirschberger, Yuichi Yamasaki, Hajime Sagayama, Hironori Nakao, Licong Peng, Kiyomi Nakajima, Rina Takagi, Taka-hisa Arima, Yoshinori Tokura & Shinichiro Seki, NATURE NANOTECHNOLOGY 15(6) 444 (2020).
  16. “Magnetically induced electric polarization in Ba3Fe2O5Cl2 with tunable direction in three dimensions”
    N. Abe, S. Shiozawa, K. Matsuura, H. Sagayama, A. Nakao, T. Ohhara, Y. Tokunaga, T. Arima PHYSICAL REVIEW B 101(18) (2020).
  17. “Emergence of a Cubic Phase Stabilized by Intermetallic Charge Transfer in (1-x) PbVO3-x BiCoO3 Solid Solutions”
    Hajime Yamamoto*, Kaoru Toda, Yuki Sakai, Takumi Nishikubo, Ikuya Yamada, Kei Shigematsu, Masaki Azuma, Hajime Sagayama, Masaichiro Mizumaki, Kiyofumi Nitta, and Hiroyuki Kimura, Chemistry of Materials 32(16) 6892-6897 (2020).
  18. “High-field depinned phase and planar Hall effect in the skyrmion host Gd2PdSi3”
    Max Hirschberger, Taro Nakajima, Markus Kriener, Takashi Kurumaji, Leonie Spitz, Shang Gao, Akiko Kikkawa, Yuichi Yamasaki, Hajime Sagayama, Hironori Nakao, Seiko Ohira-Kawamura, Yasujiro Taguchi, Taka-hisa Arima, and Yoshinori Tokura, Physical Review B 101(22) 220401-220401 (2020).
  19. “Electronic charge transfer driven by spin cycloidal structure”
    Y. Ishii, S. Horio, Y. Noda, M. Hiraishi, H. Okabe, M. Miyazaki, S. Takeshita, A. Koda, K. M. Kojima, R. Kadono, H. Sagayama, H. Nakao, Y. Murakami, and H. Kimura, Physical Review B 101(22) 224436-224436 (2020).
  20. “Gapless spin liquid in a square-kagome lattice antiferromagnet”
    Masayoshi Fujihala, Katsuhiro Morita, Richard Mole, Setsuo Mitsuda, Takami Tohyama, Shin-ichiro Yano, Dehong Yu, Shigetoshi Sota, Tomohiko Kuwai, Akihiro Koda, Hirotaka Okabe, Hua Lee, Shinichi Itoh, Takafumi Hawai, Takatsugu Masuda, Hajime Sagayama, Akira Matsuo, Koichi Kindo, Seiko Ohira-Kawamura & Kenji Nakajima Nature communications 11(1) 1-7 (2020).
  21. “Metamagnetic transitions and magnetoelectric responses in the chiral polar helimagnet Ni2InSbO6”
    Yusuke Araki, Tatsuki Sato, Yuri Fujima, Nobuyuki Abe, Masashi Tokunaga, Shojiro Kimura, Daisuke Morikawa, Victor Ukleev, Yuichi Yamasaki, Chihiro Tabata, Hironori Nakao, Youichi Murakami, Hajime Sagayama, Kazuki Ohishi, Yusuke Tokunaga, Taka-hisa Arima, Physical Review B 102(5) 054409-054409 (2020).
  22. “Detection of multipolar orders in the spin-orbit-coupled 5d Mott insulator Ba2MgReO6”
    Daigorou Hirai, Hajime Sagayama, Shang Gao, Hiroyuki Ohsumi, Gang Chen, Taka-hisa Arima, and Zenji Hiroi, Physical Review Research 2(2) 022063-022063 (2020).
  23. “Crystal Structural Investigations for Understanding the Hydrogen Storage Properties of YMgNi4-Based Alloys”
    RETURN TO ISSUEPREVARTICLENEXT Crystal Structural Investigations for Understanding the Hydrogen Storage Properties of YMgNi4-Based Alloys Toyoto Sato, Tomohiro Mochizuki, Kazutaka Ikeda, Takashi Honda, Toshiya Otomo, Hajime Sagayama, Heena Yang, Wen Luo, Loris Lombardo, Andreas Zuttel, Shigeyuki Takagi, Tatsuoki Kono, and Shin-ichi Orimo, ACS omega 5(48) 31192-31198 (2020).
  24. “Band-like transporting and thermally durable V-shaped organic semiconductors with a phenyl key block”
    Chizuru Sawabe, Shohei Kumagai, Masato Mitani, Hiroyuki Ishii, Masakazu Yamagishi, Hajime Sagayama, Reiji Kumai, Hiroyasu Sato, Jun Takeya, Toshihiro Okamoto, Journal of Materials Chemistry C 8(40) 14172-14179 (2020).
  25. “Complete phase diagram of Sr1-xLaxFeO3 with versatile magnetic and charge ordering”
    Masaho Onose, Hidefumi Takahashi, Hajime Sagayama, Yuichi Yamasaki, Shintaro Ishiwata, Physical Review Materials 4(11) 114420-114420 (2020).
  26. “Spin dynamics and magnetic ordering in the quasi-one-dimensional S = 1/2 antiferromagnet Na2CuSO4Cl2”
    M. Fujihala, S. Mitsuda, R. A. Mole, D. H. Yu, I. Watanabe, S. Yano, T. Kuwai, H. Sagayama, T. Kouchi, H. Kamebuchi, M. Tadokoro Physical Review B 101 024410-1-024410-7 (2020).
  27. “Magnetism induced by interlayer electrons in the quasi-two-dimensional electride Y2C: Inelastic neutron scattering study”
    Hiromu Tamatsukuri, Youichi Murakami, Yoshio Kuramoto, Hajime Sagayama, Masato Matsuura, Yukinobu Kawakita, Satoru Matsuishi, Yasuhito Washio, Takeshi Inoshita, Noriaki Hamada, and Hideo Hosono, Physical Review B 102, 224406 (2020).
  28. “Antiferromagnetic long-range order in the 5d1 double-perovskite Sr2MgReO6”
    S. Gao, D. Hirai, H. Sagayama, H. Ohsumi, Z. Hiroi, T. Arima, Physical Review B 102, 220412 (2020).

    29. 2019

  29. “Skyrmion phase and competing magnetic orders on a breathing kagome lattice”
    Max Hirschberger, Taro Nakajima, Shang Gao, Licong Peng, Akiko Kikkawa, Takashi Kurumaji, Markus Kriener, Yuichi Yamasaki, Hajime Sagayama, Hironori Nakao, Kazuki Ohishi, Kazuhisa Kakurai, Yasujiro Taguchi, Xiuzhen Yu, Taka-hisa Arima, and Yoshinori Tokura Nature communications 10, 44935 (2019).
  30. “Room-Temperature Low-Field Colossal Magnetoresistance in Double-Perovskite Manganite”
    S. Yamada, N. Abe, H. Sagayama, K. Ogawa, T. Yamagami, T. Arima, Physical Review Letters 123 126602 (2019).
  31. “Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet”
    Kurumaji Takashi, Nakajima Taro, Hirschberger Max, Kikkawa Akiko, Yamasaki Yuichi, Sagayama Hajime, Nakao, Hironori, Taguchi, Yasujiro, Arima Taka-hisa, Tokura Yoshinori, Science 365, 914-918 (2019).
  32. “High pressure synthesis of a quasi-one-dimensional GdFeO3-type perovskite PrCuO3 with nearly divalent Cu ions”
    Masaharu Ito, Hidefumi Takahashi, Hideaki Sakai, Hajime Sagayama, Yuichi Yamasaki, Yuichi Yokoyama, Hiroyuki Setoyama, Hiroki Wadati, Kanako Takahashi, Yoshihiro Kusano, Shintaro Ishiwata, Chemical Communications 55, 8931-8934 (2019).
  33. “Anisotropic magnetodielectric coupling in antiferromagnet Co4Nb2O9”
    N. D. Khanh, N. Abe, K. Matsuura, H. Sagayama, Y. Tokunaga, T. Arima, Applied Physics Letters 114, 102905 (2019).
  34. “Synthesis and Properties of Chiral Polyazobenzenes with Photoinduced Change in Optical Activity”
    Masashi Otaki, Reiji Kumai, Hajime Sagayama, Hiromasa Goto, Macromolecules 52, 2340-2348 (2019).
  35. “Synthesis of Polyazobenzenes Exhibiting Photoisomerization and Liquid Crystallinity”
    Masashi Otaki, Reiji Kumai, Hajime Sagayama, Hiromasa Goto, Polymers 11, 348 (2019).
  36. “Substituent dependence on the spin crossover behaviour of mononuclear Fe (ii) complexes with asymmetric tridentate ligands”
    Ryo Saiki, Haruka Miyamoto, Hajime Sagayama, Reiji Kumai, Graham N. Newton, Takuya Shiga, Hiroki Oshio, Dalton Transactions 48, 3231-3236 (2019).
  37. “Crystal Structure in Quadrupolar Kondo Candidate PrTr2Al20 (Tr= Ti and V)”
    Daisuke Okuyama, Masaki Tsujimoto, Hajime Sagayama, Yasuyuki Shimura, Akito Sakai, Atsushi Magata, Satoru Nakatsuji, Taku J. Sato, Journal of the Physical Society of Japan 88, 15001 (2018).

    38. 2018

  38. Takuya Shiga, Yamato Sato, Minami Tachibana, Hiroki Sato, Takuto Matsumoto, Hajime Sagayama, Reiji Kumai, Youichi Murakami, Graham N Newton, Hiroki Oshio Carboxylic Acid Functionalized Spin-Crossover Iron (II) Grids for Tunable Switching and Hybrid Electrode Fabrication Inorganic chemistry 57 (22), 14013?14017 (2018.10).
  39. S. Torigoe, T. Hattori, K. Kodama, T. Honda, H. Sagayama, K. Ikeda, T. Otomo, H. Nitani, H. Abe, H. Murakawa, H. Sakai, and N. Hanasaki Nanoscale ice-type structural fluctuation in spinel titanates Physical Review B 98(13), 134443 (2018.10).
  40. Kazuya Suyama, Kazuaki Iwasa, Yuka Otomo, Keisuke Tomiyasu, Hajime Sagayama, Ryoko Sagayama, Hironori Nakao, Reiji Kumai, Yoshinori Kitajima, Francoise Damay, Jean-Michel Mignot, Akira Yamada, Tatsuma D. Matsuda, and Yuji Aoki Chiral-crystal-structure transformations and magnetic states of R3Rh4Sn13 (R= La and Ce) Physical Review B 97(23) 235138 (2018.6).
  41. Akitoshi Nakano, Kento Sugawara, Shinya Tamura, Naoyuki Katayama, Kazuyuki Matsubayashi, Taku Okada, Yoshiya Uwatoko, Kouji Munakata, Akiko Nakao, Hajime Sagayama, Reiji Kumai, Kunihisa Sugimoto, Naoyuki Maejima, Akihiko Machida, Tetsu Watanuki and Hiroshi Sawa Pressure-induced coherent sliding-layer transition in the excitonic insulator Ta2NiSe5 IUCrJ 5(2) 158-165 (2018.3).
  42. M. Fujihala, T. Sugimoto, T. Tohyama, S. Mitsuda, R.?A. Mole, D.?H. Yu, S. Yano, Y. Inagaki, H. Morodomi, T. Kawae, H. Sagayama, R. Kumai, Y. Murakami, K. Tomiyasu, A. Matsuo, and K. Kindo Cluster-Based Haldane State in an Edge-Shared Tetrahedral Spin-Cluster Chain: Fedotovite K2Cu3O(SO4)3 Physical Review Letters 120(7) 77201 (2018.2).
  43. Hiromu Tamatsukuri, Haruhiro Hiraka, Kazuhiko Ikeuchi, Soshi Iimura, Yoshinori Muraba, Mitsutaka Nakamura, Hajime Sagayama, Jun-ichi Yamaura, Youichi Murakami, Yoshio Kuramoto, and Hideo Hosono Gapless magnetic excitation in a heavily electron-doped antiferromagnetic phase of LaFeAsO0.5D0.5 Physical Review B 98(17), 174415 (2018.11).
  44. Kensuke Kobayashi, Akiko Nakao, Sachiko Maki, Jun-ichi Yamaura, Takayoshi Katase, Hikaru Sato, Hajime Sagayama, Reiji Kumai, Yoshio Kuramoto, Youichi Murakami, Hidenori Hiramatsu, and Hideo Hosono Structure determination in thin film Ba1-xLaxFe2As2: Relation between the FeAs4 geometry and superconductivity Physical Review B 96(12), 125116 (2017.9).
  45. Masayoshi Fujihala, Hiroko Koorikawa, Setsuo Mitsuda, Katsuhiro Morita, Takami Tohyama, Keisuke Tomiyasu, Akihiro Koda, Hirotaka Okabe, Shinichi Itoh, Tetsuya Yokoo, Soshi Ibuka, Makoto Tadokoro, Masaki Itoh, Hajime Sagayama, Reiji Kumai & Youichi Murakami Possible Tomonaga-Luttinger spin liquid state in the spin-1/2 inequilateral diamond-chain compound K3Cu3AlO2 (SO4)4 Scientific Reports 7 16785 (2017.11).
  46. Keisuke Matsuura, Hajime Sagayama, Amane Uehara, Yoichi Nii, Ryoichi Kajimoto, Kazuya Kamazawa, Kazuhiko Ikeuchi, Sungdae Ji, Nobuyuki Abe, and Taka-hisa Arima Spin-Orbital Correlated Dynamics in the Spinel-Type Vanadium Oxide MnV2O4 Physical Review Letters 119(1), 017201(1)-(6) (2017.7).
  47. T. Osaka, H. Takahashi, H. Sagayama, Y. Yamasaki, and S. Ishiwata High-pressure synthesis of an unusual antiferromagnetic metal CaCoO3 with GdFeO3-type perovskite structure Physical Review B 95(22), 224440(1)-(5) (2017.6).
  48. S. Miyasaka, M. Uekubo, H. Tsuji, M. Nakajima, S. Tajima, T. Shiota, H. Mukuda, H. Sagayama, H. Nakao, R. Kumai, and Y. Murakami Three superconducting phases with different categories of pairing in hole- and electron-doped LaFeAs1?xPxO Physical Review B 95(21), 214515(1)-(8) (2017.6).
  49. Ping Miao, Xiaohuan Lin, Akihiro Koda, Sanghyun Lee, Yoshihisa Ishikawa, Shuki Torii, Masao Yonemura, Takashi Mochiku, Hajime Sagayama, Shinichi Itoh, Kazutaka Ikeda, Toshiya Otomo, Yinxia Wang, Ryosuke Kadono, Takashi Kamiyama Large Magnetovolume Effect Induced by Embedding Ferromagnetic Clusters into Antiferromagnetic Matrix of Cobaltite Perovskite Advanced Materials 29(27), 1605991(1)-(6) (2017).
  50. Kouji Taniguchi, Keisuke Narushima, Hajime Sagayama, Wataru Kosaka, Nanami Shito, and Hitoshi Miyasaka In Situ Reversible Ionic Control for Nonvolatile Magnetic Phases in a Donor/Acceptor Metal-Organic Framework Advanced Functional Materials 27(5), 1604990(1)-(10) (2017.2).
  51. Ichiro Terasaki, Taichi Igarashi, Takayuki Nagai, Kenji Tanabe, Hiroki Taniguchi, Taku Matsushita, Nobuo Wada, Atsushi Takata, Takanori Kida, Masayuki Hagiwara, Kensuke Kobayashi, Hajime Sagayama, Reiji Kumai, Hironori Nakao, and Youichi Murakami Absence of Magnetic Long Range Order in Ba3ZnRu2O9: A Spin-Liquid Candidate in the S = 3/2 Dimer Lattice Journal of the Physical Society of Japan. 86(3), 033702(1)-(4) (2017.2).
  52. S. Yamada, H. Sagayama, K. Higuchi, T. Sasaki, K. Sugimoto, and T. Arima Physical properties and crystal structure analysis of double-perovskite NdBaMn2O6 by using single crystals Physical Review B 95(3), 035101(1)-(7) (2017.1).
  53. Kensuke Kobayashi, Jun-ichi Yamaura, Soshi Iimura, Sachiko Maki, Hajime Sagayama, Reiji Kumai, Youichi Murakami, Hiroki Takahashi, Satoru Matsuishi, and Hideo Hosono Pressure effect on iron-based superconductor LaFeAsO1?xHx: Peculiar response of 1111-type structure Scientific Reports 6, 39646(1)-(6) (2016.12).
  54. Rong-Jia Wei, Ryohei Nakahara, Jamie M. Cameron, Graham N. Newton, Takuya Shiga, Hajime Sagayama, Reiji Kumai, Youichi Murakami, and Hiroki Oshio Solvent-induced on/off switching of intramolecular electron transfer in a cyanide-bridged trigonal bipyramidal complex Dalton Transactions 45(43), 17104-17107 (2016.10).
  55. Yuka Otomo, Kazuaki Iwasa, Kazuya Suyama, Keisuke Tomiyasu, Hajime Sagayama, Ryoko Sagayama, Hironori Nakao, Reiji Kumai, and Youichi Murakami Chiral crystal-structure transformation of R3Co4Sn13 ( R = La and Ce ) Physical Review B 94(7), 075109(1)-(5) (2016.8).
  56. Toru Adachi, Yusuke Nakamatsu, Tatsuya Kobayashi, Shigeki Miyasaka, Setsuko Tajima, Masayoshi Ichimiya, Masaaki Ashida, Hajime Sagayama, Hironori Nakao, Reiji Kumai, and Youichi Murakami Effects of c/a Anisotropy and Local Crystal Structure on Superconductivity in AFe2(As1?xPx)2 (A = Ba1?ySry, Sr1?yCay and Eu) Journal of the Physical Society of Japan 85, 063705(1)-(4) (2016.5)
  57. N. D. Khanh, N. Abe, H. Sagayama, A. Nakao, T. Hanashima, R. Kiyanagi, Y. Tokunaga, and T. Arima Magnetoelectric coupling in the honeycomb antiferromagnet Co4Nb2O9 Physical Review B 93(7), 075117(1)-(6) (2016.2).
  58. Ryoko Sagayama, Hajime Sagayama, Reiji Kumai, Youichi Murakami, Takuya Asano, Joe Kajitani, Ryuji Higashinaka, Tatsuma D. Matsuda, and Yuji Aoki Symmetry Lowering in LaOBiS2: A Mother Material for BiS2-Based Layered Superconductors Journal of the Physical Society of Japan 84, 123703(1)-(5) (2015.11)
  59. Daisuke Uematsu, Hajime Sagayama, Taka-hisa Arima, Jun J. Ishikawa, Satoru Nakatsuji, Hidenori Takagi, Masahiro Yoshida, Jun'ichiro Mizuki, and Kenji Ishii Large trigonal-field effect on spin-orbit coupled states in a pyrochlore iridate Physical Review B 92(9), 094405(1)-(6) (2015.9).
  60. K. Matsuura, H. Sagayama, Y. Nii, N. D. Khanh, N. Abe, and T. Arima X-ray magnetic circular dichroism study of an orbital ordered state in the spinel-type vanadium oxide AV2O4(A=Mn,Fe) Physical Review B 92(3), 035133(1)-(6) (2015.7).
  61. Hiroki Fukunaga, Takafumi Yoshino, Hajime Sagayama, Jun-ichi Yamaura, Taka-hisa Arima, Wataru Kosaka, and Hitoshi Miyasaka A charge-disproportionate ordered state with δ = 0.75 in a chemically sensitive donor/acceptor Dδ+2A2δ? layered framework Chemical Communications 51, 7795-7798 (2015. 3).
  62. H. Sagayama, S. Toyoda, K. Sugimoto, Y. Maeda, S. Yamada, and T. Arima Ferroelectricity driven by charge ordering in the A-site ordered perovskite manganite SmBaMn2O6 Physical Review B 90(24), 241113(R)(1)-(4) (2014.12).
  63. Y. Nii, H. Sagayama, H. Umetsu, N. Abe, K. Taniguchi, T. Arima Interplay among spin, orbital, and lattice degrees of freedom in a frustrated spinel Mn3O4 Phys. Rev. B 87(19), 195115(1)-(7) (2013.5).
  64. H. Sagayama, D. Uematsu, T. Arima, K. Sugimoto, J. J. Ishikawa, E. O’Farrell, and S. Nakatsuji Determination of long-range all-in-all-out ordering of Ir4+ moments in a pyrochlore iridate Eu2Ir2O7 by resonant x-ray diffraction Physical Review B 87 (10), 100403(R) (1)-(4) (2013.3).
  65. Y. Nii, H. Sagayama, T. Arima, S. Aoyagi, R. Sakai, S. Maki, E. Nishibori, H. Sawa, K. Sugimoto, H. Ohsumi, and M. Takata Orbital structures in spinel vanadates AV2O4 (A = Fe, Mn) Physical Review B 86 (12), 125142 (1)-(8) (2012.9).
  66. H. Sagayama, S. Ohtani, M. Saito, N. Abe, K. Taniguchi, and T. Arima Magnetic-field effect on Jahn-Teller distortion in ferroelastic magnetic insulator Fe1-xMnxCr2O4 Applied Physics Letters 99(8), 082506(1)-(3) (2011.8).
  67. Hitoshi Miyasaka, Natsuko Motokawa, Tamiko Chiyo, Miho Takemura, Masahiro Yamashita, Hajime Sagayama, and Taka-hisa Arima Stepwise Neutral－Ionic Phase Transitions in a Covalently Bonded Donor/Acceptor Chain Compound Journal of the American Chemical Society 133(14), 5338?5345 (2011.3).
  68. N. Abe, K. Taniguchi, H. Sagayama, H. Umetsu, T. Arima Correlation between the mobility of domain wall and polarization flop direction in a slanted magnetic field in the helimagnetic ferroelectrics Tb1-xDyxMnO3 Physical Review B 83(6), 060403R(1)-(4) (2011.2).
  69. J. Fujioka, T. Yasue, S. Miyasaka, Y. Yamasaki, T. Arima, H. Sagayama, T. Inami, K. Ishii, Y. Tokura Critical competition between two distinct orbital-spin ordered states in perovskite vanadates Physical Review B 82(14),144425(1)-(4) (2010.10).
  70. H. Sagayama, N. Abe, K. Taniguchi, T. Arima, Y. Yamasaki, D. Okuyama, Y. Tokura, S. Sakai, T. Morita, T. Komesu, H. Ohsumi, M. Takata Observation of Spin Helicity Using Nonresonant Circularly Polarized X-ray Diffraction Analysis Journal of the Physical Society of Japan 79(4), 043711(1)-(4) (2010.4).
  71. S. Ohtani, Y. Watanabe, M. Saito, N. Abe, K. Taniguchi, H. Sagayama, T. Arima, M. Watanabe, Y. Noda Orbital dilution effect in ferrimagnetic Fe1-xMnxCr2O4: competition between anharmonic lattice potential and spin-orbit coupling Journal of Physics: Condensed Matter 22(17), 176003(1)-(6) (2010.4).
  72. R. Kajimoto, H. Sagayama, K. Sasai, T. Fukuda, S. Tsutsui, T. Arima, K. Hirota, Y. Mitsui, H. Yoshizawa, A. Q. R. Baron, Y. Yamasaki, Y. Tokura Unconventional Ferroelectric Transition in the Multiferroic Compound TbMnO3 Revealed by the Absence of an Anomaly in c-Polarized Phonon Dispersion Physical Review Letters 102(24), 247602(1)-(4) (2009.6).
  73. H. Sagayama, K. Taniguchi, N. Abe, T. Arima, Y. Nishikawa, S. Yano, Y. Kousaka, J. Akimitsu, M. Matsuura, K. Hirota Two distinct ferroelectric phases in the multiferroic Y-type hexaferrite Ba2Mg2Fe12O22 Physical Review B 80(18), 180419R(1)-(4) (2009.11).
  74. Y. Wakabayashi, H. Sagayama, T. Arima, M. Nakamura, Y. Ogimoto, Y. Kubo, K. Miyano, H. Sawa Size of orbital-ordering domain controlled by the itinerancy of the 3d electrons in a manganite thin film Physical Review B 79(22), 220403R(1)-(4) (2009.6).
  75. Shota Konno, Kouji Taniguchi, Hajime Sagayama, Taka-hisa Arima Electrical control of in-plane anisotropy in charge-orbital ordered state of single-layered manganite La1/2Sr3/2MnO4 Applied Physics Express 2(3), 033004(1)-(3) (2009.3).
  76. Y. Yamasaki, H. Sagayama, N. Abe, T. Arima, K. Sasai, M. Matsuura, K. Hirota, D. Okuyama, Y. Noda, Y. Tokura Cycloidal Spin Order in the a-Axis Polarized Ferroelectric Phase of Orthorhombic Perovskite Manganite Physical Review Letters　101(9), 097204(1)-(4) (2008.8).
  77. H. Sagayama, K. Taniguchi, N. Abe, T. Arima, M. Soda, M.Matsuura, K. Hirota Correlation between ferroelectric polarization and sense of helical spin order in multiferroic MnWO4 Physical Review B 77(22), 220407R(1)-(4) (2008.6).
  78. K. Taniguchi, N. Abe, H. Sagayama, S. Ohtani, T. Takenobu, Y. Iwasa, T. Arima Magnetic-field dependence of the ferroelectric polarization and spin-lattice coupling in multiferroic MnWO4 Physical Review B 77(6), 064408(1)-(7) (2008.2).
  79. T. Katsufuji, T. Suzuki, H. Takei, M. Shingu, K.Kato, K. Osaka, M. Takata, H. Sagayama, T. Arima, Structural and Magnetic Properties of Spinel FeV2O4 with Two Ions Having Orbital Degrees of Freedom Journal of the Physical Society of Japan 77(5), 053708(1)-(4) (2008.5).
  80. Y. Yamasaki, H. Sagayama, T. Goto, M. Matsuura, K. Hirota, T. Arima, Y. Tokura Electric Control of Spin Helicity in a Magnetic Ferroelectric Physical Review Letters 98(14), 147204(1)-(4) (2007.4).
  81. Y. Yamasaki, S. Miyasaka, T. Goto, H. Sagayama, T. Arima, Y. Tokura Ferroelectric phase transitions of 3d-spin origin in Eu1-xYxMnO3 Physical Review B 76(18), 184418(1)-(7) (2007.11).
  82. S. Yamada, T. Matsunaga, E. Sugano, H. Sagayama, S. Konno, S. Nishiyama, Y. Watanabe, T. Arima Phase diagram and anisotropic physical properties of single crystal Bi1-xSrxMnO3 (0.35?x?0.64) Physical Review B 75(21), 214431(1)-(7) (2007.6).
  83. Reiji Kumai, Sachio Horiuchi, Hajime Sagayama, Taka-hisa Arima, Masashi Watanabe, Yukio Noda, Yoshinori Tokura Structural Assignment of Polarization in Hydrogen-Bonded Supramolecular Ferroelectrics Journal of the American Chemical Society 129(43), 12920-12921 (2007.10).
  84. S. Kuroiwa, H. Sagayama, T. Kakiuchi, H. Sawa, Y. Noda, J. Akimitsu Correlation between crystal structures of CaAlSi with and without superlattice and superconducting properties Physical Review B 74(1), 014517(1)-(5) (2006.7).
  85. Daichi Kawana, Keitaro Kuwahara, Masashi Sato, Masatoshi Takagi, Yuji Aoki, Masahumi Kohgi, Hideyuki Sato, Hajime Sagayama, Toyotaka Osakabe, Kazuaki Iwasa, Hitoshi Sugawara Structural Transformation on the Pressure-Induced Metal?Insulator Transition in PrFe4P12 Journal of the Physical Society of Japan 75(11), 113602-113605 (2006).
  86. C. Nagoshi, R. Yamamoto, K. Kuwahara, H. Sagayama, D. Kawana, M. Kohgi, H. Sugawara, Y. Aoki, H. Sato, T. Yokoo, M. Arai Magnetic and Transport Properties of Gd3Ir4Sn13 with Unique Crystal Structure Journal of the Physical Society of Japan 75(4), 044710(1)-(6) (2006.4).
  87. H. Sagayama, Y. Wakabayashi, H. Sawa, T. Kamiyama, A. Hoshikawa, S. Harjo, K. Uozato, A. K. Ghosh, M. Tokunaga, T. Tamegai Two Types of Multistack Structures in MgB2-Type Superconductor CaAlSi Journal of the Physical Society of Japan 75(4), 043713(1)-(4) (2006.4).
  88. Kazuya Otsubo, Atsushi Kobayashi, Hiroshi Kitagawa, Masato Hedo, Yoshiya Uwatoko, Hajime Sagayama, Yusuke Wakabayashi, Hiroshi Sawa Most Stable Metallic Phase of the Mixed-Valence MMX-Chain, Pt2(dtp)4I (dtp = C2H5CS2-), in Purely d-Electronic Conductors Based on the Transition-Metal Complex Journal of the American Chemical Society 128(25), 8140-8141 (2006).
  89. Atsushi Kobayashi, Aya Tokunaga, Ryuichi Ikeda, Hajime Sagayama, Yusuke Wakabayashi, Hiroshi Sawa, Masato Hedo, Yoshiya Uwatoko, Hiroshi Kitagawa Pressure-Induced Metal-semiconductor-Metal Transitions in an MMX-Chain Complex, Pt2(C2h5S2)4I European Journal of Inorganic Chemistry 18, 3567-3570 (2006.9).

Proceedings

  1. “Successive Phase Transitions in R3Ir4Sn13 (R: La and Ce) Investigated Using Neutron and X-ray Diffraction”
    Seiya Nakazato, Kazuaki Iwasa, Daisuke Hashimoto, Mami Shiozawa, Keitaro Kuwahara, Hironori Nakao, Hajime Sagayama, Motoyuki Ishikado, Takashi Ohhara, Akiko Nakao, Koji Munakata, Ryoji Kiyanagi Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2019) (2020).
  2. Keisuke Matsuura, Hajime Sagayama, Amane Uehara, Yoichi Nii, Ryoichi Kajimoto, Kazuya Kamazawa, Kazuhiko Ikeuchi, Sungdae Ji, Nobuyuki Abe, Taka-hisa Arima Magnetic excitations in the orbital disordered phase of MnV2O4 Physica B: Condensed Matter 536, 372-376 (2018.5).
  3. S. Yamada, H. Sagayama, K. Sugimoto, T. Arima Successive Phase Transitions and Magnetic Fluctuation in a Double-Perovskite NdBaMn2O6 Single Crystal Journal of Physics: Conference Series 969(1) 12103 (2018).
  4. H. Sagayama, D. Uematsu, T.-H. Arima, J. Ishikawa, E. O'Farrell, S. Nakatsuji, K. Sugimoto, H. Takagi, M. Yoshida, J. Mizuki and K. Ishii Magnetic structure and 5d-electronic state in a pyrochlore iridate Eu2Ir2O7 Acta Crystallographica Section A: Foundations and Advances 70(a1):C1457-C1457　(2014.8).
  5. D. Kawana, H. Sagayama, M. Sato, K. Kuwahara, Y. Aoki, M. Kohgi, H. Sato, K. Iwasa, H. Sugawara High-pressure X-ray diffraction study of PrFe4P12 Physica B: Condensed Matter 378, 217-219, Austria, Vienna, (2005.7.26-2005.7.31).
  6. Hajime Sagayama, Yusuke Wakabayashi, Hiroshi Sawa, Takashi Kamiyama, Akinori Hoshikawa, Stefanus Harjo, Kentaro Uosato, Ajay K. Ghosh, Masashi Tokunaga, Tsuyoshi Tamegai Correlation Of The Superconductivity With The Multi-Stack Structure In MgB2-Type Superconductor CaAlSi AIP Conference Proceedings 850, 643-644, U. S. A., Orlando, Florida, (2005.8.10-2005.8.17).
  7. K. Kuwahara , H. Sagayama , K. Iwasa, M. Kohgi, Y. Haga, Y. Onuki, K. Kakur ai, M. Nishi, K. Nakajima, N. Aso, Y. Uwatoko Magnetic Form Factor of UGe2 under High Pressure Physica B 312-313,106-108, U. S. A., Ann Arbor, (2002.7.10-2002.7.13).
  8. K. Kuwahara, H. Sagayama, K. Iwasa, M. Kohgi, S. Miyazaki, J. Nozaki, J. Nogami, M. Yokoyama, H. Amitsuka, H. Nakao, Y. Murakami High Pressure X-ray Diffraction Study of URu2Si2 ACTA PHYSICA POLONICA B 34(8), 4307-4310, Poland, Cracow, (2002.7.10-2002.7.13).
  9. H. Sagayama, K. Kuwahara, K. Iwasa, M. Kohgi, Y. Haga, Y. Onuki, K. Kakurai, M. Nishi, K. Nakajima, N. Aso Magnetic Form Factor in UGe2 Journal of The Physical Society of Japan 70(Supplement A),　28-30, Japan, Tokai, (2000.10.31-2000.11.2).