Koyama Yasumasa 小山泰正

… Alternative Names

小山泰正コヤマヤスマサ

KOYAMA Yasumasa 小山泰正

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Researcher Number	20150295
Other IDs
External Links
Affiliation (Current)	2025: 早稲田大学, 理工学術院, 名誉教授
Affiliation (based on the past Project Information) *help	2015 – 2017: 早稲田大学, 理工学術院, 教授 2006 – 2007: 早稲田大学, 理工学術院, 教授 2001 – 2003: 早稲田大学, 理工学部, 教授 1992: 早稲田大学, 工学部, 教授 1990 – 1992: 早稲田大学, 理工学部, 助教授
Review Section/Research Field	Principal Investigator Physical properties of metals/Metal-base materials / Physical properties of metals / Physical properties of metals / Physical properties of metals
Keywords	Principal Investigator 透過型電子顕微鏡 / 結晶構造の階層性 / 配位多面体 / PZT / Cu_6Ce / 12角形原子ユニット / 12角形構造ユニット / 14配位多面体 / 近似結晶相 / Mn-Si-V合金 … More / 配位多面体構造 / 12角形原子コラム / 近似結晶 / 12角形準結晶 / 準結晶 / intermetallic compound / transmission electron microscopy / covalent bond / hierarchy of crystal structures / higher order structure / nanometer-sized metastable state / atomic column / coordination polyhedron / 拡散・相変態・状態図 / 金属間化合物 / 透過型電子顕微鏡法 / 共有結合性ボンド / 高次構造 / ナノメーター準安定状態 / 原子コラム / Incommensurate phase / ferrielectric / Ferroelectric / Monoclinic phase / Morphotropic phase boundary / 強誘電分域 / 圧電性 / モルォトロピック相境界 / 不整合相 / フェリ誘電体 / 強誘電体 / 単斜晶相 / モルフォトロピック相境界 / In-situ observation / One-dimensional modulated structure / Transmission electron microscopy / 透過型電子顕微鏡観察 / 構造相転移 / Cu_6 Ce / 濃度変調 / 変調構造 / CubCe / その場観察 / 一次元変調構造 Less

Crystallographic relation between coordination-polyhedron structures involving dodecagonal atomic columns and approximant-phase structures related to the dodecagonal quasicrystalPrincipal Investigator
- Principal Investigator
  
  Koyama Yasumasa
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Physical properties of metals/Metal-base materials
- Research Institution
  Waseda University
Are higher order structures present in coordination-polyhedron structures of alloys, just like proteins?Principal Investigator
- Principal Investigator
  
  KOYAMA Yasumasa
- Project Period (FY)
  2006 – 2007
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Physical properties of metals
- Research Institution
  Waseda University
Piezoelectricity and hetero-structure fluctuations in ferroelectric materials having composition near a morphotropic phase boundaryPrincipal Investigator
- Principal Investigator
  
  KOYAMA Yasumasa
- Project Period (FY)
  2001 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Physical properties of metals
- Research Institution
  Waseda University
Structural phase transition in the heavy fermion system Cu_6CePrincipal Investigator
- Principal Investigator
  
  KOYAMA Yasumasa
- Project Period (FY)
  1990 – 1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Physical properties of metals
- Research Institution
  Waseda University

All 2018 2017 2016 2015 2008 2007 2006

All Journal Article Presentation

[Journal Article] Crystallographic features of the approximant H (Mn7Si2V) phase in the Mn-Si-V alloy system2018
- Author(s)
  K. Nakayama, T. Komatsuzaki, and Y. Koyama
- Journal Title
  
  Philos. Mag.
  
  Volume: 印刷中 Issue: 20 Pages: 1823-1847
- DOI
  10.1080/14786435.2018.1459058
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Crystallographic Relationship between the ν (Mn82Si18) and H (Mn7Si2V) Phases in the Mn-Si-V Alloy System2018
- Author(s)
 K. Nakayama, D. Kurihara, and Y. Koyama
- Journal Title
 
 MATERIALS TRANSACTIONS
 
 Volume: 59 Issue: 7 Pages: 1051-1056
- DOI
 10.2320/matertrans.MD201712
- NAID
 130007410559
- ISSN
 1345-9678, 1347-5320
- Year and Date
 2018-07-01
- Language
 English
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-15K06426
[Journal Article] Characteristic Features of the Modulated Structure Appearing in the Multiferroic Material Bi1-xSmxFeO3 around x = 0.152017
- Author(s)
  M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Journal Title
  
  Materials Science Forum
  
  Volume: 879 Pages: 1393-1398
- DOI
  10.4028/www.scientific.net/msf.879.1393
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26420681, KAKENHI-PROJECT-15K06426
[Journal Article] Crystallographic features of electronic states in the highly-correlated electronic system Sr1-xSmxMnO3 around x = 0.502017
- Author(s)
  M. Yamagata, Y. Inoue, and Y. Koyama
- Journal Title
  
  Mater. Sci. Forum
  
  Volume: 879 Pages: 2158-2163
- DOI
  10.4028/www.scientific.net/msf.879.2158
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Formation of giant atomic clusters in the β-Samson (β-Al3Mg2) phase of the Al-Mg alloy system2017
- Author(s)
  K. Nakayama, H. Tsuruta, and Y. Koyama
- Journal Title
  
  Acta Mater.
  
  Volume: 128 Pages: 249-257
- DOI
  10.1016/j.actamat.2017.02.019
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Features of Highly Correlated Electronic States in the Simple Perovskite Manganite Sr1－xSmxMnO3 with 0.15 ≦ x ≦ 0.502017
- Author(s)
  M. Yamagata, T. Endo, Y. Inoue, and Y. Koyama
- Journal Title
  
  J. Phys. Soc. Jpn.
  
  Volume: 86 Issue: 5 Pages: 054705-054705
- DOI
  10.7566/jpsj.86.054705
- NAID
  210000134365
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Possible nucleus of the Bergman cluster in the Zn-Mg-Y alloy system2017
- Author(s)
  K. Nakayama, M. Nakagawa, and Y. Koyama
- Journal Title
  
  Philos. Mag.
  
  Volume: 98 Issue: 3 Pages: 219-236
- DOI
  10.1080/14786435.2017.1400703
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Features of electronic states in the highly-correlated electronic system Sr1-xNdxMnO3 around x = 0.502017
- Author(s)
  R. Shimasaki, A. Siratani, H. Sato, Y. Inoue, and Y. Koyama
- Journal Title
  
  Mater. Sci. Forum
  
  Volume: 879 Pages: 1766-1771
- DOI
  10.4028/www.scientific.net/msf.879.1766
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Crystallographic features of the state appearing in the multiferroic material Bi1-xLaxFeO3 around x = 0.202017
- Author(s)
  H. Yoshida, M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Journal Title
  
  Mater. Sci. Forum
  
  Volume: 879 Pages: 2222-2227
- DOI
  10.4028/www.scientific.net/msf.879.2222
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Crystallographic features of orbital ordering related to the C-type antiferromagnetic state in the simple perovskite manganite Ca1-xPrxMnO32016
- Author(s)
  K. Kojima, Y. Inoue, and Y. Koyama
- Journal Title
  
  MRS Advances
  
  Volume: 1 Issue: 9 Pages: 579-584
- DOI
  10.1557/adv.2016.143
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Features of the intermediate state appearing between the C- and A-type orbital-ordered states in the highly-correlated electronic system Sr1-xNdxMnO32016
- Author(s)
  A. Shiratani, H. Sato, Y. Inoue, and Y. Koyama
- Journal Title
  
  MRS Advances
  
  Volume: 1 Issue: 9 Pages: 603-608
- DOI
  10.1557/adv.2016.219
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Crystallographic features and state stability of the decagonal quasicrystal in the Al-Co-Cu alloy system2016
- Author(s)
  K. Nakayama, A. Mizutani, and Y. Koyama
- Journal Title
  
  J. Phys. Soc. Japan
  
  Volume: 85 Issue: 11 Pages: 114602-114602
- DOI
  10.7566/jpsj.85.114602
- NAID
  40020994641
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Relaxation phenomenon in the formation of the C-type orbital-ordered state in the simple perovskite manganite Sr1-xNdxMnO32016
- Author(s)
  Y. Inoue, H. Sato, and Y. Koyama
- Journal Title
  
  J. Phys. Soc. Japan
  
  Volume: 85 Issue: 2 Pages: 024714-024714
- DOI
  10.7566/jpsj.85.024714
- NAID
  210000133837
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Features of ferroelectric states in the simple-perovskite mixed-oxide system (1-x)Pb(Zn1/3Nb2/3)O3－xPbTiO3 with lower Ti contents2016
- Author(s)
  H. Tsukasaki, Y. Uneno, S. Mori, and Y. Koyama
- Journal Title
  
  J. Phys. Soc. Japan
  
  Volume: 85 Issue: 3 Pages: 034708-034708
- DOI
  10.7566/jpsj.85.034708
- NAID
  210000133867
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Crystallographic features in the vicinity of the morphotropic phase boundary in the multiferroic material Bi1-xSmxFeO32016
- Author(s)
  M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Journal Title
  
  MRS Advances
  
  Volume: 1 Issue: 9 Pages: 573-578
- DOI
  10.1557/adv.2016.155
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426, KAKENHI-PROJECT-26420681
[Journal Article] Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system2016
- Author(s)
  K. Nakayama, J. Watanabe, and Y. Koyama
- Journal Title
  
  AIP-CP-FMS2015
  
  Volume: -
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Features of the ferroelectric domain structure in the multiferroic material YbMnO32016
- Author(s)
  T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Journal Title
  
  MRS Advances
  
  Volume: 1 Issue: 9 Pages: 591-596
- DOI
  10.1557/adv.2016.154
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426, KAKENHI-PROJECT-26420681
[Journal Article] Formation of the C-type orbital-ordered state in the simple perovskite manganite Sr1-xSmxMnO32016
- Author(s)
  M. Yamagata, A. Shiratani, Y. Inoue, and Y. Koyama
- Journal Title
  
  MRS Advances
  
  Volume: 1 Issue: 9 Pages: 615-620
- DOI
  10.1557/adv.2016.217
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K06426
[Journal Article] Features of the ferroelectric rhombohedral state in Ba(Ti1−xZrx)O3 having the simple perovskite structure2015
- Author(s)
 H. Tsukasaki, S. Mori, and Y. Koyama
- Journal Title
 
 J. Ceram. Soc. Japan
 
 Volume: 123 Issue: 1441 Pages: 913-919
- DOI
 10.2109/jcersj2.123.913
- NAID
 130005096356
- ISSN
 1348-6535, 1882-0743
- Language
 Japanese
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-15K06426
[Journal Article] Crystal-structure units of the R(Fe_3Mo_2) phase in the Fe-Mo alloy system2008
- Author(s)
  T.Doi, M.Tanimura, and Y.Koyama
- Journal Title
  
  Phys.Rev.B 77
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Crystal-structure units of the R(Fe_3Mo_2) phase in the Fe-Mo alloy system2008
- Author(s)
  T. Doi, M. Tanimura, Y. Koyama
- Journal Title
  
  Phys. Rev. B77
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Orientation relationship between the bcc and σ phases in Cr-Co alloys2007
- Author(s)
  T.Doi, M.Tanimura, and Y.Koyama
- Journal Title
  
  Mater.Res.Soc.Symp.Proc. 980
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Orientation relationship between the bcc and o phases in Cr-Co alloys2007
- Author(s)
  T. Doi, M. Tanimura, Y. Koyama
- Journal Title
  
  Mater. Res. Soc. Symp. Proc. 980
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Orientation relationship between the bcc and σ phases in Cr-Co alloys2007
- Author(s)
  T.Doi, M.Tanimura, Y.Koyama
- Journal Title
  
  Mater.Res.Soc.Symp.Proc 980
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Diffusion blocking,path variability,and bifurcation of the final state in the phase separation of Ni_3(Al,V)_<1_δ> alloys2007
- Author(s)
 M.Tanimura and Y.Koyama
- Journal Title
 
 Phys.Rev.B 76
- Description
 「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-18360306
[Journal Article] Diffusion blocking, path variability, and bifurcation of the final state in the phase separation of Ni_3(Al, V) 1-δ alloys2007
- Author(s)
  M. Tanimura, Y. Koyama
- Journal Title
  
  Phys. Rev. B76
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Diffusion blocking,path variability,and bifurcation of the final state in the phase separation of Ni3(Al,V)1-δ alloys2007
- Author(s)
  M.Tanimura, Y.Koyama
- Journal Title
  
  Phys.Rev.B 76
  
  Pages: 54103-54103
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Characteristic features of the Fe_7Mo_6-type structure in a transition-metal alloy examined using transmission electron microscopy2006
- Author(s)
  A.Hirata, A.Iwai, and Y.Koyama
- Journal Title
  
  Phys.Rev.B 74
- Description
  「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] Characteristic features of the Fe_7Mo_6-type structure in a transition-metal alloy examined using transmission electron microscopy.2006
- Author(s)
  A. Hirata, A. Iwai, Y. Koyama
- Journal Title
  
  Phys. Rev. B74
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Journal Article] The role of antiphase boundaries in the kinetic process of the L1_2→D0_<22> structural change of Ni_3Al_<0.15>V_<0.50> alloy2006
- Author(s)
 M. Tanimura, Y. Koyama
- Journal Title
 
 Acta Mater. 54
 
 Pages: 4385-4391
- Description
 「研究成果報告書概要(欧文)」より
- Data Source
 KAKENHI-PROJECT-18360306
[Journal Article] Influence of Si Addition on Microstructure Evolution of Ni_3Al_<0.50>V_<0.50> Alloy2006
- Author(s)
 M.Tanimura, K.Kondo, T.Doi, and Y.Koyama
- Journal Title
 
 Mater.Trans. 47
 
 Pages: 1755-1761
- NAID
 10017998063
- Description
 「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-18360306
[Journal Article] Influence of Si addition on Microstructure Evolution of Ni_3Al_<0.50>V_<0.50> alloy2006
- Author(s)
 M. Tanimura, K. Kondo, T. Doi, Y. Koyama
- Journal Title
 
 Mater. Trans. 47
 
 Pages: 1755-1761
- NAID
 10017998063
- Description
 「研究成果報告書概要(欧文)」より
- Data Source
 KAKENHI-PROJECT-18360306
[Journal Article] The role of antiphase boundaries in the kinetic process of the L1_2→D0_<22> structural change of Ni_3Al_<0.45>V_<0.50> alloy2006
- Author(s)
 M.Tanimura and Y.Koyama
- Journal Title
 
 Acta Mater. 54
 
 Pages: 4385-4391
- Description
 「研究成果報告書概要(和文)」より
- Peer Reviewed
- Data Source
 KAKENHI-PROJECT-18360306
[Presentation] 強相関電子系Sr0.56(Nd1-xSmx)0.44MnO3における遂次相転移の特徴2018
- Author(s)
  鈴木美智子, 嶋崎里奈, 山形弥里, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2018年春期(第162回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Ca1-xPrxMnO3の低Pr組成域における軌道整列状態の特徴2018
- Author(s)
  山村祐樹, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2018年春期(第162回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xCaxFeO3での不整合変調構造の特徴2018
- Author(s)
  廣山拓巳, 吉田春香, 野元将志, 井上靖秀, 小山泰正, 堀部陽一
- Organizer
  日本金属学会2018年春期(第162回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr0.56(Nd1-xSmx)0.44MnO3における遂次相転移の特徴2017
- Author(s)
  鈴木美智子, 嶋崎里奈, 山形弥里, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xCaxFeO3の低Ca組成域における結晶学的特徴2017
- Author(s)
  廣山拓巳，吉田春香，野元将志，井上靖秀，小山泰正
- Organizer
  日本金属学会2017年春期(第160回)講演大会
- Place of Presentation
  首都大学東京南大沢キャンパス
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xNdxMnO3におけるC型およびA型軌道整列状態間の電子相転移2017
- Author(s)
  嶋崎里奈, 白谷あゆみ, 佐藤兆樹, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xSmxMnO3における(C型+A型)軌道整列共存状態の特徴2017
- Author(s)
  鈴木美智子，山形弥里，井上靖秀，小山泰正
- Organizer
  日本金属学会2017年春期(第160回)講演大会
- Place of Presentation
  首都大学東京南大沢キャンパス
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xCaxFeO3の低Ca組成域における結晶学的特徴2017
- Author(s)
  廣山拓巳, 吉田春香, 野元将志, 井上靖秀, 小山泰正, 堀部陽一
- Organizer
  日本金属学会2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Ca1-xLaxMnO3の無秩序状態に出現するHaung散乱の起源2017
- Author(s)
  遠藤智貴，後藤崇将，井上靖秀，小山泰正
- Organizer
  日本金属学会2017年春期(第160回)講演大会
- Place of Presentation
  首都大学東京南大沢キャンパス
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Ca1-xPrxMnO3の低Pr組成域における軌道整列状態の特徴2017
- Author(s)
  山村祐樹, 小山泰正, 井上靖秀, 遠藤智貴, 児島健太郎
- Organizer
  日本金属学会2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Ca1-xLaxMnO3のx=0.25組成付近における軌道整列状態の特徴2017
- Author(s)
  遠藤智貴, 後藤崇将, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xNdxMnO3における軌道整列状態間の状態変化の特徴2017
- Author(s)
  嶋崎里奈，白谷あゆみ，佐藤兆樹，井上靖秀，小山泰正
- Organizer
  日本金属学会2017年春期(第160回)講演大会
- Place of Presentation
  首都大学東京南大沢キャンパス
- Year and Date
  2017-03-15
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xLaxFeO3での反強誘電整合・不整合状態の結晶学的特徴2017
- Author(s)
  吉田春香, 野元将志, 井上靖秀, 堀部陽一, 小山泰正
- Organizer
  日本金属学会2017年秋期(第161回)講演大会
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xSmxFeO3に出現する反強誘電状態の結晶学的特徴2016
- Author(s)
  野元将志，井下匠，堀部陽一，井上靖秀，小山泰正
- Organizer
  日本金属学会2016年秋期(第159回)講演大会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Ca1-xLaxMnO3でのC型軌道整列に関係した軌道ゆらぎの特徴2016
- Author(s)
  遠藤智貴，後藤崇将，井上靖秀，小山泰正
- Organizer
  日本金属学会2016年秋期(第159回)講演大会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xNdxMnO3 におけるA型軌道整列形成過程の結晶学的特徴2016
- Author(s)
  嶋崎里奈，白谷あゆみ，佐藤兆樹，井上靖秀，小山泰正
- Organizer
  日本金属学会2016年秋期(第159回)講演大会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xSmxMnO3におけるC型・A型軌道整列相の相境界付近の特徴2016
- Author(s)
  山形弥里，井上靖秀，小山泰正
- Organizer
  日本金属学会2016年秋期(第159回)講演大会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Formation of the C-type orbital-ordered state in the highly-correlated electronic system Ca1-xPrxMnO32016
- Author(s)
  K. Kojima, Y. Inoue, and Y. Koyama
- Organizer
  The 9th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC’2016
- Place of Presentation
  Messe Gratz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features of the approximant H phase in the Mn-Si-V alloy system2016
- Author(s)
  Kei Nakayama, Takumi Komatsuzaki, and Yasumasa Koyama
- Organizer
  THERMEC'2016
- Place of Presentation
  Messe Graz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Ca1-xLaxMnO3におけるC型軌道整列状態の形成2016
- Author(s)
  後藤崇将, 小山泰正
- Organizer
  第63回応用物理学会春季学術講演会
- Place of Presentation
  東京工業大学大岡山キャンパス
- Year and Date
  2016-03-22
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xSmxFeO3におけるモルフォトロピック相境界付近の結晶学的特徴2016
- Author(s)
  野元将志, 井下匠, 井上靖秀, 堀部陽一, 小山泰正
- Organizer
  日本金属学会2016年春期(第158回)講演大会
- Place of Presentation
  東京理科大学葛飾キャンパス
- Year and Date
  2016-03-23
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features of electronic states in the highly-correlated electronic system　Sr1-xSmxMnO3 around x=0.502016
- Author(s)
  M.Yamagata, Y. Inoue, and Y. Koyama
- Organizer
  The 9th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC’2016
- Place of Presentation
  Messe Gratz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Features of electric states in the highly-correlated electronic system Sr1-xNdxMnO3 around x = 0.502016
- Author(s)
  R. Shimasaki, A. Shiratani, H. Sato, Y. Inoue, and Y. Koyama
- Organizer
  The 9th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC’2016
- Place of Presentation
  Messe Gratz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xLaxFeO3のx = 0.25付近における結晶学的特徴2016
- Author(s)
  吉田春香, 野元将志, 井下匠, 井上靖秀, 堀部陽一, 小山泰正
- Organizer
  日本金属学会2016年春期(第158回)講演大会
- Place of Presentation
  東京理科大学葛飾キャンパス
- Year and Date
  2016-03-23
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features of the approximant H phase in the Mn-Si-V alloy system2016
- Author(s)
  K. Nakayama, T. Komatsuzaki, and Y. Koyama
- Organizer
  The 9th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC’2016
- Place of Presentation
  Messe Gratz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Characteristic features of the modulated structure appearing in the multiferroic material Bi1-xSmxFeO3 around x = 0.152016
- Author(s)
  M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Organizer
  The 9th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC’2016
- Place of Presentation
  Messe Gratz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xSmxMnO3におけるA型軌道整列相境界付近の結晶学的特徴2016
- Author(s)
  山形弥里, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2016年春期(第158回)講演大会
- Place of Presentation
  東京理科大学葛飾キャンパス
- Year and Date
  2016-03-23
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features of the state appearing in the multiferroic material Bi1-xLaxFeO3 around x = 0.202016
- Author(s)
  H. Yoshida, M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Organizer
  The 9th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC’2016
- Place of Presentation
  Messe Gratz (Graz)
- Year and Date
  2016-06-01
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic Relation between the ν and H Phases in the Mn-Si-V Alloy System2016
- Author(s)
  K. Nakayama, D. Kurihara, and Y. Koyama
- Organizer
  2016 MRS Fall Meeting
- Place of Presentation
  Hynes (Boston)
- Year and Date
  2016-11-29
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Zn-Mg-Y合金における三次元準結晶およびH構造の結晶学的相関2016
- Author(s)
  中川雅也，仲山啓，小山泰正
- Organizer
  日本金属学会2016年秋期(第159回)講演大会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xLaxFeO3におけるPbZrO3-like相の特徴2016
- Author(s)
  吉田春香，野元将志，井上靖秀，小山泰正
- Organizer
  日本金属学会2016年秋期(第159回)講演大会
- Place of Presentation
  大阪大学豊中キャンパス
- Year and Date
  2016-09-21
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xNdxMnO3におけるC型/A型軌道整列相境界付近の結晶学的特徴2016
- Author(s)
  嶋崎里奈, 白谷あゆみ, 佐藤兆樹, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2016年春期(第158回)講演大会
- Place of Presentation
  東京理科大学葛飾キャンパス
- Year and Date
  2016-03-23
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Formation of the C-type orbital-ordered state in the simple perovskite manganite Sr1-xSmxMnO32015
- Author(s)
  M. Yamagata, A. Shiratani, Y. Inoue, and Y. Koyama
- Organizer
  2015 MRS Fall Meeting & Exhibit
- Place of Presentation
  Hynes Convention Center (Boston)
- Year and Date
  2015-11-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質Bi1-xSmxFeO3におけるモルフォトロピック相境界付近の強誘電状態2015
- Author(s)
  野元将志, 井下匠, 井上靖秀, 堀部陽一, 小山泰正
- Organizer
  日本金属学会2015年秋期(第157回)講演大会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系酸化物Sr1-xSmxMnO3におけるC型軌道整列状態の形成過程2015
- Author(s)
  山形弥里, 白谷あゆみ, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2015年秋期(第157回)講演大会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Sr1-xRxMnO3(R=Nd, Sm)におけるC型/A型軌道整列相境界付近の結晶学的特徴2015
- Author(s)
  白谷あゆみ, 佐藤兆樹, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2015年秋期(第157回)講演大会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features of orbital ordering related to the C-type antiferromagnetic state in the simple perovskite manganite Ca1-xPrxMnO32015
- Author(s)
  K. Kojima, Y. Inoue, and Y. Koyama
- Organizer
  2015 MRS Fall Meeting & Exhibit
- Place of Presentation
  Hynes Convention Center (Boston)
- Year and Date
  2015-11-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] マルチフェロイクス物質YbMnO3における強誘電分域構造の特徴2015
- Author(s)
  井下匠, 井上靖秀, 堀部陽一, 小山泰正
- Organizer
  日本金属学会2015年秋期(第157回)講演大会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Features of the intermediate state appearing between the C- and A-type orbital-ordered states in the highly-correlated electronic system Sr1-xRxMnO3 (R = Nd, Sm)2015
- Author(s)
  A. Shiratani, H. Sato, Y. Inoue, and Y. Koyama
- Organizer
  2015 MRS Fall Meeting & Exhibit
- Place of Presentation
  Hynes Convention Center (Boston)
- Year and Date
  2015-11-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Features of the ferroelectric domain structure in the multiferroic material YbMnO32015
- Author(s)
  T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Organizer
  2015 MRS Fall Meeting & Exhibit
- Place of Presentation
  Hynes Convention Center (Boston)
- Year and Date
  2015-11-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features of orbital ordering related to the C-type antiferromagnetic state in the highly-correlated electronic system Ca1-xPrxMnO32015
- Author(s)
  K. Kojima, Y. Inoue, and Y. Koyama
- Organizer
  2nd International Symposium on Frontiers in Materials Science
- Place of Presentation
  Waseda University (Tokyo)
- Year and Date
  2015-11-20
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Crystallographic features in the vicinity of the morphotropic phase boundary in the multiferroic material Bi1-xSmxFeO32015
- Author(s)
  M. Nomoto, T. Inoshita, Y. Inoue, Y. Horibe, and Y. Koyama
- Organizer
  2015 MRS Fall Meeting & Exhibit
- Place of Presentation
  Hynes Convention Center (Boston)
- Year and Date
  2015-11-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Orientation relationship between the T structure and the icosahedral quasicrystal in the Zn-Mg-Al alloy system2015
- Author(s)
  K. Nakayama, J. Watanabe, and Y. Koyama
- Organizer
  2nd International Symposium on Frontiers in Materials Science
- Place of Presentation
  Waseda University (Tokyo)
- Year and Date
  2015-11-20
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Mn-Si-V合金における近似結晶H相の結晶構造と構造欠陥の特徴2015
- Author(s)
  小松崎巧, 仲山啓, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2015年秋期(第157回)講演大会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] 強相関電子系Mn酸化物Ca1-xPrxMnO3におけるC型反強磁性状態に関係した軌道整列の結晶学的特徴2015
- Author(s)
  児島健太郎, 井上靖秀, 小山泰正
- Organizer
  日本金属学会2015年秋期(第157回)講演大会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2015-09-16
- Data Source
  KAKENHI-PROJECT-15K06426
[Presentation] Structural correspondence between the it and o structures in Fe-Mo alloys.2008
- Author(s)
  T. Doi, K. Ohta, M. Tanimura, Y. Koyama
- Organizer
  2008 Spring Annual Meeting of The Japan Institute of Metals
- Place of Presentation
  Tokyo, Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Fe-Mo合金におけるμおよびσ構造の構造対応2008
- Author(s)
  土井敏宏、谷村誠、小山泰正
- Organizer
  日本金属学会2008年春期(第142回)大会
- Place of Presentation
  武蔵工業大学
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Fe-18at.%Mo合金におけるbcc構造からR構造への形成2007
- Author(s)
  土井敏宏、谷村誠、小山泰正
- Organizer
  日本金属学会2007年秋期(第141回)大会
- Place of Presentation
  岐阜大学
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Crystallographic features of the bcc-to-o structural change in Cr-Co alloys.2007
- Author(s)
  T. Doi, M. Tanimura, Y. Koyama
- Organizer
  2007 Spring Meeting of The Physical Society of Japan
- Place of Presentation
  Kagoshima, Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Fe-18at.%Mo合金におけるbcc構造からのR構造の形成2007
- Author(s)
  土井敏宏、谷村誠、小山泰正
- Organizer
  日本金属学会2007年秋期(第141回)大会
- Place of Presentation
  岐阜大学
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Formation of the R structure from the bcc one in an Fe-18at.%Mo alloy.2007
- Author(s)
  T. Doi, M. Tanimura, Y. Koyama
- Organizer
  2007 Autumn Annual Meeting of The Japan Institute of Metals
- Place of Presentation
  Gifu, Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Cr-Co合金におけるbcc構造からのσ構造の形成2007
- Author(s)
  土井敏宏、谷村誠、小山泰正
- Organizer
  日本物理学会2007年春季大会
- Place of Presentation
  鹿児島大学
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Formation of the o structure from the bcc one in a Cr-24. 0at.%Co alloy,A Measurement Study on Kaze-no-Michi in Waterfront Areas of Tokyo(Part3) Wind Behavior along Streets and Rivers2006
- Author(s)
  T. Doi, M. Tanimura, Y. Koyama
- Organizer
  2006 Autumn Annual Meeting of The Japan Institute of Metals
- Place of Presentation
  Niigata, Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Influence of the point-defect introduction on the microstructure evolution of the Ni_3Al_0.5oV_0.5o alloy2006
- Author(s)
  H. Kyushima, M. Tanimura, Y. Koyama
- Organizer
  2006 Autumn Annual Meeting of The Japan Institute of Metals
- Place of Presentation
  Niigata, Japan
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Orientation relationship between the bcc and σ phases in Cr-Co alloys2006
- Author(s)
  T.Doi, M.Tanimura, and Y.Koyama
- Organizer
  2006 MRS Fall Meeting
- Place of Presentation
  Boston,USA
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Relation between the aniphase boundary density and the kinetic process of the L1_2-L1_2+D0_<22> phase separation of the Ni_3A1_<0.50>V_<0.50> alloy2006
- Author(s)
 K. Kondo, M. Tanimura, Y. Koyama
- Organizer
 2006 Autumn Annual Meeting of The Japan Institute of Metals
- Place of Presentation
 Niigata, Japan
- Description
 「研究成果報告書概要(欧文)」より
- Data Source
 KAKENHI-PROJECT-18360306
[Presentation] Orientation relationship between the bcc and o phases in Cr-Co alloys2006
- Author(s)
  T. Doi, M. Tanimura, Y. Koyama
- Organizer
  2006 MRS Fall Meeting
- Place of Presentation
  Boston, USA.
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Ni_3Al_<0.50>V_<0.50>合金のL1_2→L1_2+D0_<22>相分離における反位相境界密度と状態変化の相関2006
- Author(s)
 近藤桂一、谷村誠、小山泰正
- Organizer
 日本金属学会2006年秋期(第139回)大会
- Place of Presentation
 新潟大学
- Description
 「研究成果報告書概要(和文)」より
- Data Source
 KAKENHI-PROJECT-18360306
[Presentation] Cr-24.0at.%Co合金におけるbcc構造からのσ構造の形成過程2006
- Author(s)
  土井敏宏、谷村誠、小山泰正
- Organizer
  日本金属学会2006年秋期(第139回)大会
- Place of Presentation
  新潟大学
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-18360306
[Presentation] Ni_3Al_<0.50>V_<0.50>合金の相分離過程に及ぼす点欠陥導入の影響2006
- Author(s)
 久島浩史、谷村誠、小山泰正
- Organizer
 日本金属学会2006年秋期(第139回)大会
- Place of Presentation
 新潟大学
- Description
 「研究成果報告書概要(和文)」より
- Data Source
 KAKENHI-PROJECT-18360306

1. HIROTSU Yoshihiko (70016525)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. HIRATA Akihiko (90350488)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
3. 仲山啓 (30732193)

# of Collaborated Projects: 1 results

# of Collaborated Products: 11 results
4. INOUE Yasuhide

# of Collaborated Projects: 1 results

# of Collaborated Products: 49 results
5. 堀部陽一

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Koyama Yasumasa 小山 泰正

小山 泰正 コヤマ ヤスマサ

KOYAMA Yasumasa 小山 泰正

Research Projects

Research Products

Co-Researchers

Crystallographic relation between coordination-polyhedron structures involving dodecagonal atomic columns and approximant-phase structures related to the dodecagonal quasicrystalPrincipal Investigator

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Are higher order structures present in coordination-polyhedron structures of alloys, just like proteins?Principal Investigator

Principal Investigator

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Piezoelectricity and hetero-structure fluctuations in ferroelectric materials having composition near a morphotropic phase boundaryPrincipal Investigator

Principal Investigator

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Structural phase transition in the heavy fermion system Cu_6CePrincipal Investigator

Principal Investigator

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[Journal Article] Crystallographic features of the approximant H (Mn7Si2V) phase in the Mn-Si-V alloy system2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Crystallographic Relationship between the ν (Mn<sub>82</sub>Si<sub>18</sub>) and H (Mn<sub>7</sub>Si<sub>2</sub>V) Phases in the Mn-Si-V Alloy System2018

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[Journal Article] Characteristic Features of the Modulated Structure Appearing in the Multiferroic Material Bi1-xSmxFeO3 around x = 0.152017

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[Journal Article] Crystallographic features of electronic states in the highly-correlated electronic system Sr1-xSmxMnO3 around x = 0.502017

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[Journal Article] Formation of giant atomic clusters in the β-Samson (β-Al3Mg2) phase of the Al-Mg alloy system2017

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[Journal Article] Features of Highly Correlated Electronic States in the Simple Perovskite Manganite Sr1－xSmxMnO3 with 0.15 ≦ x ≦ 0.502017

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[Journal Article] Possible nucleus of the Bergman cluster in the Zn-Mg-Y alloy system2017

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[Journal Article] Features of electronic states in the highly-correlated electronic system Sr1-xNdxMnO3 around x = 0.502017

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[Journal Article] Crystallographic features of the state appearing in the multiferroic material Bi1-xLaxFeO3 around x = 0.202017

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Koyama Yasumasa 小山泰正

小山泰正コヤマヤスマサ

KOYAMA Yasumasa 小山泰正

[Journal Article] Features of the ferroelectric rhombohedral state in Ba(Ti<sub>1−</sub><i><sub>x</sub></i>Zr<i><sub>x</sub></i>)O<sub>3</sub> having the simple perovskite structure2015