Theory of bulk sensitive hard x-ray photoemission spectroscopy for 3d transition metal compounds

2012 Fiscal Year Final Research Report

• Project/Area Number: 20540324
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: TAGUCHI Munetaka 独立行政法人理化学研究所, 励起秩序研究チーム, 研究員 (10415218)
• Project Period (FY): 2008 – 2012
• Keywords: 硬X線光電子分光 / 3d遷移金属化合物 / 配置間相互作用模型 / 金属絶縁体転移

Research Abstract

Hard x-ray photoemission spectroscopy (HAXPES) is a bulk sensitive probe of the electronic structure due to its ability to overcome high surface sensitivity of conventional soft x-ray photoemission spectroscopy. HAXPES can today be considered to be a fairly standard and valuable tool for the study of the intrinsic electronic structure of solids. Thus, we carried out extensive theoretical studies of HAXPES on 3d transition metal compounds and its related materials. We received a high evaluation for our research globally and these results are presented as 4 invitation lectures in major conferences inside and outside the country.

Research Products

• [Journal Article] Quantifying covalency and metallicity in correlated compounds undergoing metal-insulator transitions (2013)
  • Author(s): A. Chainani, A. Yamamoto, M. Matsunami, R. Eguchi, M. Taguchi, Y. Takata, S. Shin, Y. Nishino, M. Yabashi, K. Tamasaku, and T. Ishikawa
  • Journal Title: Physical Review B Volume: 87 Pages: 045108-1-10
  • Peer Reviewed
• [Journal Article] Photoemission Evidence for Valence Fluctuations and Kondo Resonance in YbAl_2 (2012)
  • Author(s): M. Matsunami, A. Chainani, M. Taguchi, R. Eguchi, Y. Takata, M. Oura, M. Yabashi, K. Tamasaku, Y. Nishino, T. Ishikawa, M. Kosaka, and S. Shin
  • Journal Title: Journal of the Physical Society of Japan Volume: 81 Pages: 073702-1～4
  • Peer Reviewed
• [Journal Article] Role of Ti 3d Carriers in Mediating the Ferromagnetism of Co:TiO_2 Anatase Thin Films (2011)
  • Author(s): T. Ohtsuki, A. Chainani, R. Eguchi, M. Matsunami, Y. Takata, M. Taguchi, Y. Nishino, K. Tamasaku, M. Yabashi, T. Ishikawa, M. Oura, Y. Senba, H. Ohashi, and S. Shin
  • Journal Title: Physical Review Letters Volume: 106 Pages: 047602-1-4
  • Peer Reviewed
• [Journal Article] Electronic structure of an antiferromagnetic metal: CaCrO_3 (2011)
  • Author(s): P. A. Bhobe, A. Chainani, M. Taguchi, R. Eguchi, M. Matsunami, T. Ohtsuki, K. Ishizaka, M. Okawa, M. Oura, Y. Senba, H. Ohashi, M. Isobe, Y. Ueda, and S. Shin
  • Journal Title: Physical Review B Volume: 83 Pages: 165132-1-7
  • Peer Reviewed
• [Journal Article] Strong Valence Fluctuation in the Quantum Critical Heavy Fermion Superconductor υ-YbAlB_4: A Hard X-ray Photoemission Study (2010)
  • Author(s): M. Okawa, M. Matsunami, K. Ishizaka, R. Eguchi, M. Taguchi, A. Chainani, Y. Takata, M. Yabashi, K. Tamasaku, Y. Nishino, T. Ishikawa, K. Kuga, N. Hiroe,S. Nakatsuji, and S. Shin
  • Journal Title: Physical Review Letters Volume: 104 Pages: 247201-1-4
  • Peer Reviewed
• [Journal Article] Strong Evidence for a correlated insulator to antiferromagnetic metal transition in CrN (2010)
  • Author(s): P. A. Bhobe, A. Chainani, M. Taguchi, T. Takeuchi, R. Eguchi, M. Matsunami, K. Ishizaka, Y. Takata, M. Oura, Y. Senba, H. Ohashi, Y. Nishino, M. Yabashi, K. Tamasaku, T. Ishikawa, K. Takenaka, H. Takagi, and S. Shin,
  • Journal Title: Physical Review Letters Volume: 104 Pages: 236404-1-4
  • Peer Reviewed
• [Journal Article] Anomalous State Sandwiched between Fermi Liquid and Charge Ordered Mott-Insulating Phases of Ti_4O_7 (2010)
  • Author(s): M. Taguchi, A. Chainani, M. Matsunami, R. Eguchi, Y. Takata, M. Yabashi, K. Tamasaku, Y. Nishino, T. Ishikawa, S. Tsuda, S. Watanabe, C. .T. Chen, Y. Senba, H. Ohashi, K. Fujiwara, Y. Nakamura, H. Takagi, and S. Shin
  • Journal Title: Physical Review Letters Volume: 104 Pages: 106401-1-4
  • Peer Reviewed
• [Journal Article] Kondo scaling of the pseudogap in CeOs_4Sb_12 and CeFe_4P_12 (2010)
  • Author(s): P. A. Rayjada, A. Chainani, M. Matsunami, M. Taguchi, S. Tsuda, T. Yokoya, S. Shin, H. Sugawara, and H. Sato
  • Journal Title: Journal of Physic: Condensed Matter Volume: 22 Pages: 095502-1-8
  • Peer Reviewed
• [Journal Article] Revising the Valence-Band and Core-Level Photoemission Spectra of NiO (2008)
  • Author(s): M. Taguchi, M. Matsunami, Y. Ishida, R. Eguchi, A. Chainani, Y. Takata, M. Yabashi, K. Tamasaku, Y. Nishino, T. Nishino, T. Ishikawa, Y. Senba, H. Ohashi, and S. Shin
  • Journal Title: Physical Review Letters Volume: 100 Pages: 206401-1-4
  • Peer Reviewed
• [Journal Article] Evidence for Mott-Hubbard Insulator Transition in VO_2 (2008)
  • Author(s): R. Eguchi, M. Taguchi, M. Matsunami, K. Horiba, K. Yamamoto, Y. Ishida, A. Chainani, Y. Takata, M. Yabashi, D. Miwa, Y. Nishino, K. Tamasaku, T. Ishikawa, Y. Senba, H. Ohashi, Y. Muraoka, Z. Hiroi, and S. Shin
  • Journal Title: Physical Review B Volume: 78 Pages: 075115-1-5
  • Peer Reviewed
• [Journal Article] Combining Photoemission and Optical Spectroscopies for Reliable Valence Determination in YbS and Yb metal (2008)
  • Author(s): M. Matsunami, A. Chainani, M. Taguchi, R. Eguchi, Y. Ishida, Y. Takata, M. Yabashi, K. Tamasaku, Y. Nishino, Y. Senba, H. Ohashi, H. Okamura, T. Nanba, N. Tsujii, A. Ochiai, and S. Shin
  • Journal Title: Physical Review B Volume: 78 Pages: 195118-1-5
  • Peer Reviewed
• [Journal Article] Electronic structure of semiconducting CeFe_4P_12: Strong hybridization and relevance of single-impurity Anderson model (2008)
  • Author(s): M. Matsunami, K. Horiba, M. Taguchi, K. Yamamoto, A. Chainani, Y. Takata, Y. Senba, H. Ohashi, M. Yabashi, K. Tamasaku, Y. Nishino, D. Miwa, T. Ishikawa, E. Ikenaga, K. Kobayashi, H. Sugawara, H. Sato, H. Harima and S. Shin
  • Journal Title: Physical Review B Volume: 77 Pages: 165126-1-5
  • Peer Reviewed
• [Presentation] 温度によって三つの顔を見せるチタン酸化物の正体に迫る (2011)
  • Author(s): 田口宗孝
  • Organizer: RSC報奨金表彰受賞講演(SPring-8 日本)
  • Place of Presentation: SPring-8 日本
  • Year and Date: 2011-04-01
• [Presentation] 硬X線光電子分光によるFe3O4の電子状態 (2010)
  • Author(s): 田口宗孝
  • Organizer: 日本物理学会 春季大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-21
• [Presentation] The electronic structure of A-site ordered perovskite ACu_3Ru_4O_12 (A=Ca, Na, and La) by the hard x-ray photoemission spectroscopy (2009)
  • Author(s): 田口宗孝
  • Organizer: International 4^(th) International Workshop on Hard X-ray Photoelectron Spectroscopy: HAXPES 2011
  • Place of Presentation: Deutsches Elektronen Synchrotron DESY, Hamburg, Germany
  • Year and Date: 20090520-22
• [Presentation] Studies of the Electronic Structure of Strongly Correlated Materials by the Combination of HAXPES and Other Techniques (2009)
  • Author(s): 田口宗孝
  • Organizer: International Workshop for New Opportunities in Hard X-ray Photoelectron Spectroscopy: HAXPES 2009
  • Place of Presentation: National Synchrotron Light Source, New York, USA
  • Year and Date: 20090520-22
• [Presentation] 硬X線光電子分光による強相関物質の研究 光電子分光によるフェルオロジー:熱力学物性は光電子分光でどの程度理解できるか? (2009)
  • Author(s): 田口宗孝,企画招待講演
  • Organizer: 第22回日本方射光学会年会・方射光科学合同シンポジウム
  • Place of Presentation: 東京大学、本郷キャンパス
  • Year and Date: 20090109-12
• [Remarks]
  • URL: http://www.riken.jp/lab/riken-sx/
• [Remarks] 賞等の受賞 2011年4月1日 平成22年度RSC報奨金表彰
• [Remarks] マグネリ相チタン酸化物 温度変化で三つの顔 日刊工業新聞、2010年3月9日
• [Remarks] 温度で3種の相変化 マグネリ相チタン酸化物 化学工業日報、2010年3月9日
• [Remarks] マグネリ相チタン酸化物"三つの顔"の謎を解明 科学新聞、2010年3月26日
• [Remarks] 奇妙なチタン酸化物 .温度で3種の相変化-Ceramics Japan (セラミックス)、Vol.45 7月号 2010年 572ページ
• [Remarks] Semiconducting sandwich filling retains its mystery RIEKN RESEARCH Volume 5 Number 7 (2010) 4
• [Remarks] 酸化ニッケル絶縁体の謎解明 日経産業新聞、2008年5月19日
• [Remarks] 酸化ニッケルはなぜ金属でないのか -長年の謎を解明- 科学新聞、2008年5月30日
• [Remarks] A breath of fresh air for electronics RIEKN RESEARCH Volume 3 Number 11 (2008) 3
• [Remarks] ノーベル賞学者モットを悩ませた謎に挑む SPring-8学術成果集 夢の光を使ってサイエンスの謎に挑む p47-48 (2010)