早稲田大学 理工学術院 基幹理工学研究科・基幹理工学部

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 Bi_1-xSm_xFeO₃
  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 Ca_1-xLa_xMnO₃ 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 Bi_1-xCa_xFeO₃
  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).