多自由度放射光X線二色性分光による強相関係界面新規電子相の研究

2011 Fiscal Year Annual Research Report

• Project/Area Number: 22224005
• Research Institution: The University of Tokyo
• Principal Investigator: 藤森 淳 東京大学, 大学院・理学系研究科, 教授 (10209108)
• Co-Investigator(Kenkyū-buntansha): 組頭 広志 東京大学, 大学院・工学系研究科, 准教授 (00345092) ; 小出 常晴 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 准教授 (10150012)
• Keywords: 遷移金属酸化物 / 界面 / 軟X線磁気円二色性 / 光電子分光 / 軟X線二色性

Research Abstract

1.前年度作製した軟X線磁気円二色性測定装置に超伝導磁石をもう1軸増設し,電源制御系も整備し,任意方向の磁場を引加できるようにして多自由度軟X線円二色性測定装置を完成させた.
2.伝導性酸化物であるSrVO_3を用いた金属量子井戸構造を作製し,強相関電子の量子化状態について詳細に検討した.その結果,「サブバンドに依存した有効質量増大」の起源として表面・界面におけるバンド幅の減少が寄与している可能性を見出した.
3.現在各国で精力的な研究が行われているLaNiO_3(LNO)超薄膜について,電荷不連続を持つLNO/SrTiO_3基板を作製し,その電子状態を明らかにした.また,電荷不連続を持たないLNO/LaAlO_3基板の結果と比較・検討することで,界面における電荷不連続が超薄膜の電子状態に与える影響を特定した.
4.V_<1-x>W_xO_2薄膜における金属絶縁体(MIT)転移の可能性について、二量体化と構造変異の可能性を軟X線吸収分光の偏光依存性測定により検証した。その結果、Wドープ量が低い領域では二量体化によるパイエルス誘起MITが、高い領域では構造歪によるMott的なMITが支配的であることが明らかになった.
5.典型的な巨大磁気抵抗系として知られるLa_<1-x>Sr_xMnO_3(LSMO).を薄膜化して起こる金属-絶縁体転移の機構を探るため,系統的な軟X線磁気円二色性(XMCD)測定を行った.金属-絶縁体転移の臨界膜厚以下で,強磁性絶縁体と常磁性絶縁体が共存する状態が現れることを見出した.
6.強磁性NiFe_2O_4(NFO)と強誘電性BaTiO_3(BTO)からなる電気-磁気結合を示す多層膜のXMCD測定を行い,元素選択的な磁性の情報を得た.エピタキシャル応力によりNiとFeの磁気モーメントが同時に増大することおよび,NFO/BTO界面においてNi磁気モーメントの消失と電気-磁気結合の間に強い相関があることがわかった.

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

多自由度軟X線円二色性測定装犀が平成23年度内に完成した.酸化物薄膜,界面の光電子分光を用いた研究,既存の軟X線円二色性測定装置を用いた研究は順調に進展し,その他の強相関係ナノ構造・界面の既存の軟X線円二色性測定装置を用いた研究も進展している.

Strategy for Future Research Activity

当初の予定通り,多自由度軟X線円二色性測定装置を整備し,酸化物を中心とした強相関係界面,ナノ構造の研究を進める.上記の新装置を用いた研究においては,マンガン,鉄などを含む磁性の強い系から測定を始めて,計測技術のノウハウを蓄積した後に,チタンやニッケルなどを含む磁性の弱い系に移行していく方針である.

Research Products

• [Journal Article] X-Ray Magnetic circular dichroism study of the π-d molecular ferromagnet β-Mn phthalocyanine (2012)
  • Author(s): T.Kataoka, Y.Sakamoto, V.R.Singh, Y.Yamazaki, A.Fujimori, Y.Takeda, T.Ohkochi, T.Okane, Y.Saitoh, H.Yamagami, A. Tanaka
  • Journal Title: Solid State Commu. Volume: 152 Pages: 806-809
  • DOI: 10.1016/j.ssc.2012.01.036
  • Peer Reviewed
• [Journal Article] Investigation of electronic states of infinite-layer SrFeO_2 epitaxial thin films by x-ray photoemission and absorption spectroscopies (2012)
  • Author(s): A.Chikamatsu, T.Matsuyama, Y.Hirose, Hiroshi Kumigashira, M.Oshima, T.Hasegawa
  • Journal Title: Journal of Electron Spectroscopy and Related Phenomena Volume: 184 Pages: 547-550
  • DOI: DOI:10.1016/j.elspec.2011.09.002
  • Peer Reviewed
• [Journal Article] Tunable ferromagnetism in Ni_<0.97-x>Mn_xO thin films with hole doping and their electronic structures (2011)
  • Author(s): Y.-H.Lin, M.Kobayashi, R.Zhao, G.S.Song, C.-W.Nan, S.Li, W.-S.Yan, J.I.Hwang, Y.Ooki, A.Fujimori, Y.Takeda, S.I.Fujimori, K.Terai, T.Okane, Y.Saitoh, H.Yamagami, C.Gao
  • Journal Title: Phys.Rev.B Volume: 83 Pages: 193105-1-4
  • DOI: DOI:10.1103/PhysRevB.83.193105
  • Peer Reviewed
• [Journal Article] Metallic quantum well states in artificial structures of strongly correlated oxide (2011)
  • Author(s): K.Yoshimatsu, K.Horiba, H.Kumigashira, T.Yoshida, A.Fujimori, M.Oshima
  • Journal Title: Science Volume: 383 Pages: 319-322
  • DOI: DOI:10.1126/science.1205771
  • Peer Reviewed
• [Journal Article] Ferromagnetism in antiferromagnetic Ni0-based thin films (2011)
  • Author(s): Y.-H.Lin, B.Zhan, C.-W.Nan, R.Zhao, X.Xu, M.Kobayashi A.Fujimori
  • Journal Title: J.Appl.Phys. Volume: 110 Pages: 043921-1-4
  • DOI: 10.1063/1.3626053
  • Peer Reviewed
• [Journal Article] Ferromagnetic interaction between Cu ions in the bulk region of Cu-doped ZnO nanowires (2011)
  • Author(s): T.Kataoka, Y.Yamazaki,V.R.Singh, A.Fujimori, F.-H.Chang, H.-J.Lin, D.J. Huang, C.T.Chen, G.Z.Xing, J.W.Seo, C.Panagopoulos, T.Wu
  • Journal Title: Phys.Rev.B Volume: 84 Pages: 153203-1-4
  • DOI: DOI:10.1103/PhysRevB.84.153203
  • Peer Reviewed
• [Journal Article] Ferromagnetism in ZnO co-doped with Mn and N studied by soft x-ray magnetic circular dichroism (2011)
  • Author(s): T.Kataoka, Y.Yamazaki, V.R.Singh, Y.Sakamoto, A.Fujimori, Y.Takeda, T.Ohkochi, S.-I.Fujimori, T.Okane, Y.Saitoh, H.Yamagami, A.Tanaka, M.Kapilashrami, L.Belova, K.V.Rao
  • Journal Title: Appl.Phys.Lett. Volume: 99 Pages: 132508-1-3
  • DOI: 10.1063/1.3643044
  • Peer Reviewed
• [Journal Article] Electronic charges and electric potential at LaAlO_3/SrTiO_3 interfaces studied by core-level photoemission spectroscopy (2011)
  • Author(s): M.Takizawa, S.Tsuda, T.Susaki, H.Y.Hwang, A.Fujimori
  • Journal Title: Phys.Rev.B Volume: 84 Pages: 245124-1-5
  • DOI: DOI:10.1103/PhysRevB.84.245124
  • Peer Reviewed
• [Journal Article] Competition between instabilities of Peierls transition and Mott transition in W-doped VO_2 thin films (2011)
  • Author(s): E.Sakai, K.Yoshimatsu, K.Shibuya, H.Kumigashira, E.Ikenaga, M.i Kawasaki, Y.Tokura, M.Oshima
  • Journal Title: Phys.Rev.B Volume: 84 Pages: 195132[1-5]
  • DOI: DOI:10.1103/PhysRevB.84.195132
  • Peer Reviewed
• [Journal Article] Magnetic and electronic properties of La_2 VMnO_6 ordered double perovskite thin films (2011)
  • Author(s): Chakraverty, K.Yoshimatsu, Y.Kozuka, H.Kumigashira, M.Oshima, T.Makino, A.Ohtomo, M.Kawasaki
  • Journal Title: Phys.Rev.B Volume: 84 Pages: 132411[1-4]
  • DOI: DOI:10.1103/PhysRevB.84.132411
  • Peer Reviewed
• [Journal Article] Carrier Compensation Mechanism in Heavily Nb-doped Anatase Ti_<1-X> Nb_x O_<2+δ> Epitaxial Thin Films (2011)
  • Author(s): H.Nogawa, A.Chikamatsu, Y.Hirose, S.Nakao, H.Kumigashira, M.Oshima, T.Hasegawa
  • Journal Title: J.Phys.D : Appl.Phys. Volume: 44 Pages: 365404[1-6]
  • DOI: DOI:10.1088/0022-3727/44/36/365404
  • Peer Reviewed
• [Journal Article] An n-type transparent conducting oxide Nb_<12>O_<29> (2011)
  • Author(s): T.Ohsawa, J.Okubo, T.Suzuki, H.Kumigashira, M.Oshima, T.Hitosugi
  • Journal Title: J.Phys.Chem.C Volume: 115 Pages: 16625-16629
  • DOI: DOI:10.1021/jp203021u
  • Peer Reviewed
• [Journal Article] Formation of transition layers at metal/perovskite oxide interfaces showing resistive switching behaviors (2011)
  • Author(s): T.Yamamoto, R.Yasuhara, H.Kumigashira, I.Ohkubo, M.Oshima
  • Journal Title: J.Appl.Phys. Volume: 110 Pages: 053707[1-7]
  • DOI: 001:10.1063/1.3631821
  • Peer Reviewed
• [Presentation] SiO_2被覆されたFePtナノ粒子の軟X線円磁気二色性 (2012)
  • Author(s): 門野利治, Vijay Raj Singh, Virendra Kumar Verma, 石上啓介, 芝田悟朗, 原野貴幸, 藤森淳, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 山本真平, 高野幹夫
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 20120324-20120327
• [Presentation] 軟X線磁気円二色性によるLa_<0.6>Sr_<0.4>MnO_3薄膜の膜厚依存相転移の研究 (2012)
  • Author(s): 芝田悟朗, V.R.Singh, V.K.Verma, 石上啓介, 原野貴幸, 門野利治, 藤森淳, 小出常晴, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 吉松公平, 坂井延寿, 組頭広志, 尾嶋正治, 澤彰仁
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 20120324-20120327
• [Presentation] Ru置換により保磁力を増強したLa_<0.6>Sr_<0.4>MnO_3薄膜のX線磁気円二色性 (2012)
  • Author(s): 野貴幸, 石上啓介, Virendra Kumar Verma, 芝田悟朗, 門野利治, 藤森淳, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 山田浩之, 澤彰仁, 川崎雅司, 十倉好紀
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 20120324-20120327
• [Presentation] X-ray absorption spectroscopy and magnetic circular dichroism study of BaTiO_3/(NiFe_2O_4/BaTiO_3)_n multilayer thin films (2012)
  • Author(s): V.K.Verma, V.R.Singh, K.Ishigami, G.Shibata, T.Harano, T.Kadono, A.Fujimori, F.-H.Chang, H.-J.Lin, D.-J.Huang, C.T.Chen, Yuanhua Lin, Ce-Wen Nan
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 20120324-20120327
• [Presentation] SrRuO_3薄膜界面のX線磁気円二色性測定 (2012)
  • Author(s): 石上啓介, V.K.Verma, 芝田悟朗, 原野貴幸, 門野利治, 藤森淳, V.R. Singh, 小出常晴, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 吉松公平, 組頭広志, 尾嶋正治
  • Organizer: 本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 20120324-20120327
• [Presentation] 軟X線共鳴非弾性散乱による希薄磁性体Ga_<1-x>_Mn_xAsにおける電子構造解析 (2012)
  • Author(s): 小林正起, 丹羽秀治, 原田慈久, 尾嶋正治, 竹田幸治, 藤森淳, 田中新, 仙波泰徳, 大橋治彦, 大矢忍, 田中雅明
  • Organizer: 本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 20120324-20120327
• [Presentation] Thickness-dependent phase transitions of La_<0.6>Sr_<0.4>MnO_3 thin films studied by soft x-ray magnetic circular dichroism (2012)
  • Author(s): G.Shibata. V.R.Singh, V.K.Verma, K.Ishigami, T.Harano, T.Kadono, A.Fujimori, T.Koide, Y.Takeda, T.Okane, Y.Saitoh, H.Yamagami, F.-H.Chang, H.-J.Lin, D.-J.Huang, K.Yoshimatsu, E.Sakai, H.Kumigashira, M.Oshima, A.Sawa
  • Organizer: 12-th Korea-Japan-Taiwan Symposium on Strongly Correlated Systems (KJT12)
  • Place of Presentation: National Sun Yat-Sen University, Kaohsiung(台湾)
  • Year and Date: 20120316-20120318
• [Presentation] 酸化物量子井戸構造による強相関電子の2次元閉じ込め (2012)
  • Author(s): 吉松公平, 堀場弘司, 組頭広志, 吉田鉄平, 藤森淳, 尾嶋正治
  • Organizer: 第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学(東京都)
  • Year and Date: 20120315-20120318
• [Presentation] Ru置換により保磁力を増強したLa_<0.6>Sr_<0.4>MnO_3薄膜のX線磁気円二色性 (2012)
  • Author(s): 原野貴幸, 石上啓介, V.K.Verma, 芝田悟朗, 門野利治, 藤森淳, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 山田浩之, 澤彰仁, 川崎雅司, 十倉好紀, 田中新
  • Organizer: 第29回PFシンポジウム
  • Place of Presentation: つくば(茨城県)
  • Year and Date: 20120315-20120316
• [Presentation] 巨大な保磁力をもつFePtナノ粒子の軟X線磁気円二色性 (2012)
  • Author(s): 門野利治, Vijay Raj Singh, Virendra Kumar Verma, 石上啓介, 芝田悟朗, 原野貴幸, 藤森淳, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 山本真平, 高野幹夫
  • Organizer: 第29回PFシンポジウム
  • Place of Presentation: つくば(茨城県)
  • Year and Date: 20120315-20120316
• [Presentation] Possibility of hole-induced ferromagnetism in transition-metal-doped ZnO nano-structures (2012)
  • Author(s): A.Fujimori
  • Organizer: Physics and Chemistry of Spintronics Materials
  • Place of Presentation: Coorg, India(招待講演)
  • Year and Date: 20120222-20120226
• [Presentation] Thickness dependence of the electronic structure of oxide thin films (2012)
  • Author(s): A.Fujimori
  • Organizer: UK-Japan Meeting 2012 in Tokyo on Novel Quantum Matter in Correlated Oxides
  • Place of Presentation: University of Tokyo(東京都)(招待講演)
  • Year and Date: 20120109-20120110
• [Presentation] Soft x-ray photoemission study of La_<1-x>Sr_xTiO_3 thin films (2012)
  • Author(s): K.Ishigami
  • Organizer: UK-Japan Meeting 2012 in Tokyo on Novel Quantum Matter in Correlated Oxides
  • Place of Presentation: University of Tokyo(東京都)
  • Year and Date: 20120109-20120110
• [Presentation] Investigation of FePt nano-particles using x-ray magnetic circular dichroism (2012)
  • Author(s): T.Kadono
  • Organizer: UK-Japan Meeting 2012 in Tokyo on Novel Quantum Matter in Correlated Oxides
  • Place of Presentation: University of Tokyo(東京都)
  • Year and Date: 20120109-20120110
• [Presentation] X-ray magnetic circular dichroism study of La_<0.6>Sr_<0.4>MnO_3 with enhanced coercivity by Ru (2012)
  • Author(s): T.Harano
  • Organizer: UK-Japan Meeting 2012 in Tokyo on Novel Quantum Matter in Correlated Oxides
  • Place of Presentation: University of Tokyo(東京都)
  • Year and Date: 20120109-20120110
• [Presentation] Thickness-dependent phase transition of La$_{0.6}$Sr_<0.4>MnO_3 hin films studied by soft x-ray magnetic circular dichroism (2012)
  • Author(s): G.Shibata
  • Organizer: UK-Japan Meeting 2012 in Tokyo on Novel Quantum Matter in Correlated Oxides
  • Place of Presentation: University of Tokoy(東京都)
  • Year and Date: 20120109-20120110
• [Presentation] 軟X線磁気円二色性を用いたFePtナノ粒子の研究 (2012)
  • Author(s): 門野利治, V.R.Singh, V.K.Verma, 石上啓介, 芝田悟朗, 原野貴幸, 山本真平, 高野幹夫, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 藤森淳
  • Organizer: 第25回日本放射光学会年会放射光科学合同シンポジウム
  • Place of Presentation: 鳥栖(佐賀県)
  • Year and Date: 20120106-20120109
• [Presentation] Ru置換により保磁力を増強したLa_<0.6>Sr_<0.4>MnO_3薄膜のX線磁気円二色性 (2012)
  • Author(s): 原野貴幸, 石上啓介, Virendra Kumar Verma, 芝田悟朗, 門野利治, 藤森淳, 竹田幸治, 岡根哲夫, 斎藤祐児, 山上浩志, 山田浩之, 澤彰仁, 川崎雅司, 十倉好紀
  • Organizer: 第25回日本放射光学会年会放射光科学合同シンポジウム
  • Place of Presentation: 鳥栖(佐賀県)
  • Year and Date: 20120106-20120109
• [Presentation] In-situ放射光電子分光による強相関酸化物の表面・界面研究 (2012)
  • Author(s): 組頭広志
  • Organizer: 日本物理学会 第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)(招待講演)
  • Year and Date: 2012-03-27
• [Presentation] 酸化物の新機能と先端計測・分析技術 (2012)
  • Author(s): 組頭広志
  • Organizer: 応用物理学会(2012年春季)
  • Place of Presentation: 早稲田大学(東京都)(招待講演)
  • Year and Date: 2012-03-15
• [Presentation] Thickness dependent electronic and magnetic properties of transition-metal oxide thin films (2012)
  • Author(s): A.Fujimori
  • Organizer: One day conference on "Strongly Correlated Systems"
  • Place of Presentation: Indian Institute of Science, Bangalore(インド)(招待講演)
  • Year and Date: 2012-02-21
• [Presentation] Metallic Quantum Well States in Artificial Structures Based on Strongly-Correlated Oxide (2012)
  • Author(s): Hiroshi Kumigashira
  • Organizer: SPIE Photonics West
  • Place of Presentation: Moscone Center, San Francisco, CA, US(招待講演)
  • Year and Date: 2012-01-24
• [Presentation] Thickness-dependent electronic and magnetic properties of oxide thin films (2011)
  • Author(s): A.Fujimori
  • Organizer: FIRST-QS2C Workshop on "Emergent Phenomena of Correlated Materials"
  • Place of Presentation: Okinawa(冲縄県)(招待講演)
  • Year and Date: 20111212-20111215
• [Presentation] Metallic quantum well states in artificial structures of strongly correlated oxide (2011)
  • Author(s): Yoshimatsu, K.Horiba, H.Kumigashira, T.Yoshida, A.Fujimori, M.Oshima
  • Organizer: FIRST-QS2C Workshop on "Emergent Phenomena of Correlated Materials"
  • Place of Presentation: Okinawa(冲縄県)
  • Year and Date: 20111212-20111215
• [Presentation] Metal-insulator transition and two-dimensional electron liquid states in artificial structure of strongly correlated oxide (2011)
  • Author(s): K.Yoshimatsu, K.Horiba, H.Kumigashira, T.Yoshida, A.Fujimori, M.Oshima
  • Organizer: 物構研シンポジウム'11「量子ビーム科学の展望」
  • Place of Presentation: つくば(茨城県)
  • Year and Date: 20111206-20111207
• [Presentation] Thickness dependence of the electronic properties of transition oxide thin films (2011)
  • Author(s): A.Fujimori
  • Organizer: New Frontiers in the Physics of Two Dimensional Electron Systems
  • Place of Presentation: Buenos Aires(アルゼンチン)(招待講演)
  • Year and Date: 20111123-20111125
• [Presentation] Thickness dependence of the electronic and magnetic properties of perovskite oxide thin films (2011)
  • Author(s): A.Fujimori
  • Organizer: International Conference on Physics of Novel and Emerging Materials
  • Place of Presentation: Kolkata(インド)(招待講演)
  • Year and Date: 20111115-20111117
• [Presentation] Design and fabrication of HTS coils for a vector magnet (2011)
  • Author(s): M.Furuse, M.Okano, S.Fuchino, A.Uchida, J.Fujihira, S.Fujihira, T.Kadono, A.Fujimori, T.Koide
  • Organizer: 第85回低温工学・超電導学会
  • Place of Presentation: 金沢(石川県)
  • Year and Date: 20111109-20111111
• [Presentation] 磁性薄膜・多層膜を究める:キャラクタリゼーションから新奇材料の創製へ (2011)
  • Author(s): 藤森淳
  • Organizer: XMCDを用いた磁性薄膜,ナノ構造の研究, PF研究会
  • Place of Presentation: 高エネルギー加速器研究機構(茨城県)(招待講演)
  • Year and Date: 20111014-20111015
• [Presentation] Metal-insulator transition and two-dimensional electron liquid in SrVO_3 ultrathin films (2011)
  • Author(s): K.Yoshimatsu, K.Horiba, H.Kumigashira, T.Yoshida, A.Fujimori, M.Oshima
  • Organizer: Workshop on Oxide Electronics (WOE18)
  • Place of Presentation: Napa Valley, USA
  • Year and Date: 20110926-20110928
• [Presentation] La_<0.6>Sr_<0.4>MnO_3の磁性の膜厚依存性の軟X線磁気円二色性による研究 (2011)
  • Author(s): 芝田悟朗, V.R. Singh, V.K.Verma, 石上啓介, 門野利治, 藤森淳, 小出常晴, 吉松公平, 坂井延寿, 組頭広志, 尾嶋正治
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 20110921-20110924
• [Presentation] X-ray magnetic circular dichroism study of Cr-doped C_<0.80>Mn_<0.20>Te thin films (2011)
  • Author(s): V.K.Verma, V.R.Singh, K.Ishigami, G.Shibata, T.Kadono, A.Fujimori, T.Koide, K.Ishikawa, K.Kanazawa, S.Kuroda
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 20110921-20110924
• [Presentation] SrVO_3の極薄膜化による低次元電子状態 (2011)
  • Author(s): 吉松公平, 堀場弘司, 組頭広志, 吉田鉄平, 藤森淳, 尾嶋正治
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 20110921-20110924
• [Presentation] 軟X線分光・散乱測定を用いた物性研究の現状と展望 (2011)
  • Author(s): 藤森淳
  • Organizer: 軟X線磁気円二色性による磁性ナノ構造の研究,PF研究会
  • Place of Presentation: 高エネルギー加速器研究機搆(茨城県)(招待講演)
  • Year and Date: 20110913-20110914
• [Presentation] Design and fabrication of HTS coils for a vector magnet (2011)
  • Author(s): M.Furuse, M.Okano, S.Fuchino, A.Uchida, J.Fujihira, S.Fujihira, T.Kadono, A.Fujimori, T.Koide
  • Organizer: 22nd International Conference on Magnet Technology
  • Place of Presentation: Marseille, France
  • Year and Date: 20110912-20110916
• [Presentation] Thickness dependences of the electronic and magnetic properties of perovskite oxide thin films (2011)
  • Author(s): A.Fujimori
  • Organizer: Tokyo-Cologne Workshop on Strongly Correlated Transition-Metal Compounds
  • Place of Presentation: Cologne(ドイツ)(招待講演)
  • Year and Date: 20110907-20110910
• [Presentation] X-ray magnetic circular dichroism study of CdMnCrTe thin films (2011)
  • Author(s): V.K.Verma, V.R.Singh, K.Ishigami, G.Shibata, T.Kadono, A.Fujimori, T.Koide, K.Ishikawa, K.Kanazawa, S.Kuroda
  • Organizer: 6th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH6)
  • Place of Presentation: Matsue(島根県)
  • Year and Date: 20110801-20110805
• [Presentation] Effects of chemical composition of Co_2MnSi thin films facing an MgO barrier on the magnetic states of Mn and Co atoms (2011)
  • Author(s): T.Kadono, V.R.Singh, V.K.Verma, K.Ishigami, G.Shibata, A.Fujimori, D.Asakura, T.Koide, G.Li, T.Ishikawa, M.Yamamoto
  • Organizer: 5th International Workshop on Spin Currents
  • Place of Presentation: Sendai(宮城県)(招待講演)
  • Year and Date: 20110725-20110728
• [Presentation] Photoemission spectroscopy of oxide interfaces (2011)
  • Author(s): A.Fujimori
  • Organizer: 4th Workshop for Emergent Materials Research Joint Workshop of Max-Planck POSTECH Center for Complex Phase Materials and Asia Pacific Center for Theoretical Physics
  • Place of Presentation: Pohang(韓国)(招待講演)
  • Year and Date: 20110711-20110713
• [Presentation] Metallic Quantum Well States in Artificial Structures Based on Strongly-Correlated Oxide (2011)
  • Author(s): Hiroshi Kumigashira
  • Organizer: Workshop of oxide electronics 18
  • Place of Presentation: Marriot Napa Valley Hotel and Spa, CA, US(招待講演)
  • Year and Date: 2011-09-26
• [Presentation] Metal-insulator transition and two-dimensional electron liquid in SrVO_3 ultrathin films (2011)
  • Author(s): Hiroshi Kumigashira
  • Organizer: 2011 Villa Conference on Complex Oxide Heterostructures (VC-COH)
  • Place of Presentation: Las Vegas, Nevada, US(招待講演)
  • Year and Date: 2011-04-22
• [Presentation] Metal-insulator transition and two-dimensional electron liquid in SrVO_3 ultrathin films (2011)
  • Author(s): Hiroshi KUMIGASHIRA
  • Organizer: 2011 Villa Conference on Complex Oxide Heteros tructures (VC-COH)
  • Place of Presentation: Las Vegas, Nevada, US(招待講演)
  • Year and Date: 2011-04-22
• [Remarks]
  • URL: http://wyvern.phys.s.u-tokyo.ac.jp/
• [Patent(Industrial Property Rights)] 磁場発生装置および磁気分光測定装置 (2012)
  • Inventor(s): 古瀬充穂, 岡野眞, 淵野修一郎, 藤森淳, 門野利治, 藤平潤一, 藤平誠一, 内野公, 藤平秀幸
  • Industrial Property Rights Holder: 独立行攻法人産業技術総合研究所(持分30%), 東京大学(持分15%), (株)フジヒラ(持分55%)
  • Industrial Property Number: 特願2012-41922
  • Filing Date: 2012-02-28