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早稲田大学 理工学術院 基幹理工学研究科・基幹理工学部


早稲田大学 理工学術院 基幹理工学研究科・基幹理工学部

〒169-8555 東京都新宿区大久保3-4-1

研究業績

2019年
論文
  • Y. Horibe, M. Nomoto, T. Inoshita, K. Watanabe, S.-W. Cheong, Y. Inoue, and Y. Koyama
    Quadruple superstructure with antiferroic ionic displacements in Bi1-xSmxFeO3
    Phys. Rev. B 100, 024105 1-8 (2019).
  • Tomoki Endo, Takamasa Goto, Yasuhide Inoue, and Yasumasa Koyama
    Disordered Jahn-Teller-Polaron States in the Simple Perovskite Manganite Ca1-xLaxMnO3 with 0.15 ≦ x ≦ 0.28
    J. Phys. Soc. Jpn. 88, 074708 (2019).
  • Takumi Hiroyama, Akihiko Hirata, Yasuhide Inoue, Yoichi Horibe, and Yasumasa Koyama
    Effect of Ca Doping on Modulated Structures in Multiferroic Bi1-xCaxFeO3
    J. Phys. Soc. Jpn. 88, 054601 (2019).
  • M. Murakami, S. Kohara, N. Kitamura, J. Akola, H. Inoue, A. Hirata, Y. Hiraoka, Y. Onodera, I. Obayashi, J. Kalikka, N. Hirao, T. Musso, A. S. Foster, Y. Idemoto, O. Sakata and Y. Ohishi
    Ultrahigh-pressure form of SiO2 glass with dense pyrite-type crystalline homology
    Phys. Rev. B 99, 045153 (2019) .
  • K.M. Ji, J.H. Han, A. Hirata, T. Fujita, Y.H. Shen, S.C. Ning, P. Liu, H. Kashani, Y. Tian, Y. Ito, J. Fujita and Y. Oyama
    Lithium intercalation into bilayer graphene
    Nature Comm. 10, 275 (2019).


2018年
論文
  • K. Nakayama, T. Komatsuzaki, and Y. Koyama
    Crystallographic features of the approximant H (Mn7Si2V) phase in the Mn-Si-V alloy system
    Philos. Mag. 98, 1823 (2018).
  • K. Nakayama, D. Kurihara, and Y. Koyama
    Crystallographic Relationship between the ν (Mn82Si18) and H (Mn7Si2V) Phases in the Mn-Si-V Alloy System
    Mater. Trans. 59, 1051 (2018).
  • K. Nakayama, M. Nakagawa, and Y. Koyama
    Possible nucleus of the Bergman cluster in the Zn-Mg-Y alloy system
    Philos. Mag. 98, 219 (2018).
  • H. Tsukasaki, A. Tateishi, and Y. Koyama
    Features of the ferroelectric tetragonal state in the simple-perovskite mixed-oxide system (1-x)Pb(Sc1/2Nb1/2)O3-xPbTiO3
    J. Ceram. Soc. Japan 126, 170 (2018).
  • F. Zhu, S.X. Song, K.M. Reddy, A. Hirata, and M.W. Chen
    Spatial heterogeneity as the structure feature for structure-property relationship of metallic glasses
    Nature Communications 9, 3965 (2018).
  • M. Okugawa, R. Nakamura, A. Hirata, M. Ishimaru, H. Yasuda and H. Numakura
    Structure of crystallized particles in sputter-deposited amorphous germanium films
    J. Appl. Cryst. 51, 1467 (2018).
  • A. Hirata, T. Ichitsubo, P.F. Guan, T. Fujita, and M.W. Chen
    Distortion of Local Atomic Structures in Amorphous Ge-Sb-Te Phase Change Materials
    Phys. Rev. Lett. 120, 205502 (2018).
  • A. Hirata
    Crystalline Approximant of Amorphous Fe-Si-B Structures
    Mater. Trans. 59, 1047 (2018).
  • J. H. Han, A. Hirata, J. Du, Y. Ito, T. Fujita, S. Kohara, T. Ina, M. W. Chen
    Intercalation pseudocapacitance of amorphous titanium [email protected] graphene for high-rate and large-capacity energy storage
    Nano Energy. 49, 354 (2018).


2017年
論文
  • M. Yamagata, T. Endo, Y. Inoue, and Y. Koyama
    Features of Highly Correlated Electronic States in the Simple Perovskite Manganite Sr1-xSmxMnO3 with 0.15<x<0.50
    J. Phys. Soc. Japan 86, 054705 (2017).
  • K. Nakayama, H. Tsuruta, and Y. Koyama
    Formation of giant atomic clusters in the β-Samson (β-Al3Mg2) phase of the Al-Mg alloy system
    Acta Mater. 128, 249 (2017).
  • H. Tsukasaki, Y. Tanaka, Y. Chiba, and Y. Koyama
    Features of the Relaxor State in the Simple-Perovskite Mixed-Oxide System (1-x)Pb(Mg1/3Nb2/3)O3 -xPbTiO3
    J. Phys. Soc. Japan 86, 034703 (2017).
  • M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
    Characteristic features of the modulated structure appearing in the multiferroic Bi1-xSmxFeO3 around x = 0.15
    Mater. Sci. Forum 879, 1393 (2017).
  • R. Shimasaki, A. Siratani, H. Sato, Y. Inoue, and Y. Koyama
    Features of electronic states in the highly-correlated electronic system Sr1-xNdxMnO3 around x = 0.50
    Mater. Sci. Forum 879, 1766 (2017).
  • M. Yamagata, Y. Inoue, and Y. Koyama
    Crystallographic features of electronic states in the highly-correlated electronic system Sr1-xSmxMnO3 around x = 0.50
    Mater. Sci. Forum 879, 2158 (2017).
  • H. Yoshida, M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
    Crystallographic features of the state appearing in the multiferroic material Bi1-xLaxFeO3 around x = 0.20
    Mater. Sci. Forum 879, 2222 (2017).
  • F. Zhu, A. Hirata, P. Liu, S. Song, Y. Tian, J. H. Han, T. Fujita, and M. W. Chen
    Correlation between Local Structure Order and Spatial Heterogeneity in a Metallic Glass
    Phys. Rev. Lett. 119 215501 (2017).
  • H. Nishino, T. Fujita, N. T. Cuong, S. Tominaka, M. Miyauchi, S. Iimura, A. Hirata, N. Umezawa, S. Okada, E. Nishibori, A. Fujino, T. Fujimori, S. Ito, J. Nakamura, H. Hosono, and T. Kondo
    Formation and Characterization of Hydrogen Boride Sheets Derived from MgB2 by Cation Exchange
    J. Am. Chem. Soc. 139 13761-13769 (2017).
  • S. Jiang, H. Wang, Y. Wu, X. Liu, H. Chen, M. Yao, B. Gault, D. Ponge, D. Raabe, A. Hirata, M. Chen, Y. Wang, and Z. Lu
    Ultrastrong steel via minimal lattice misfit and high-density nanoprecipitation
    Nature 544 460-464 (2017).


2016年
論文
  • K. Nakayama, A. Mizutani, and Y. Koyama
    Crystallographic features and state stability of the decagonal quasicrystal in the Al-Co-Cu alloy system
    J. Phys. Soc. Japan 85, 114602 (2016).
  • Y. Inoue, H. Sato, and Y. Koyama
    Relaxation phenomenon in the formation of the C-type orbital-ordered state in the simple perovskite manganite Sr1-xNdxMnO3
    J. Phys. Soc. Japan 85, 024714 (2016).
  • H. Tsukasaki, Y. Uneno, S. Mori, and Y. Koyama
    Features of ferroelectric states in the simple-perovskite mixed-oxide system (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 with lower Ti contents
    J. Phys. Soc. Japan 85, 034708 (2016).
  • M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
    Crystallographic features in the vicinity of the morphotropic phase boundary in the multiferroic material Bi1-xSmxFeO3
    MRS Advances 1, 573 (2016).
  • K. Kojima, Y. Inoue, and Y. Koyama
    Crystallographic features of orbital ordering related to the C-type antiferromagnetic state in the simple perovskite manganite Ca1-xPrxMnO3
    MRS Advances 1, 579 (2016).
  • T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
    Features of the ferroelectric domain structure in the multiferroic material YbMnO3
    MRS Advances 1, 591 (2016).
  • A. Shiratani, H. Sato, Y. Inoue, and Y. Koyama
    Features of the intermediate state appearing between the C- and A-type orbital-ordered states in the highly-correlated electronic system Sr1-xNdxMnO3
    MRS Advances 1, 603 (2016).
  • M. Yamagata, A. Shiratani, Y. Inoue, and Y. Koyama
    Formation of the C-type orbital-ordered state in the simple perovskite manganite Sr1-xSmxMnO3
    MRS Advances 1, 615 (2016).
  • K. Nakayama, J. Watanabe, and Y. Koyama
    Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system
    AIP Conference Proceedings 1763, 050001 (2016).
  • Atomic-scale disproportionation in amorphous silicon monoxide
    A. Hirata, S. Kohara, T. Asada, M. Arao, C. Yogi, H. Imai, Y. W. Tan, T. Fujita, M. W. Chen
    Nature Communications 7, 11591 (2016).
  • Hierarchical structures of amorphous solids characterized by persistent homology
    Y. Hiraoka, T. Nakamura, A. Hirata, E. G. Escolar, K. Matsue, Y. Nishiura
    Proceedings of the National Academy of Sciences 113, 7035 (2016).
  • E. Matsubara, S. Okada, T. Ichitsubo, T. Kawaguchi, A. Hirata, P. F. Guan, K. Tokuda, K. Tanimura, T. Matsunaga, M. W. Chen, and N. Yamada
    Initial Atomic Motion Immediately Following Femtosecond-Laser Excitation in Phase-Change Materials
    Phys. Rev. Lett. 117 135501 (2016).






バナースペース

小山-平田研究室

〒169-8555
東京都新宿区大久保3-4-1
西早稲田キャンパス63号館
7階7-01室(小山研)
4階4-20室(平田研)