Development of a novel technique to reveal electronic structure in solids by wide-energy high-resolution photoemission spectroscopy

2010 Fiscal Year Final Research Report

• Project/Area Number: 21740229
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics I
• Research Institution: Osaka University
• Principal Investigator: SEKIYAMA Akira Osaka University, 大学院・基礎工学研究科, 教授 (40294160)
• Project Period (FY): 2009 – 2010
• Keywords: 光物性 / 光電子分光 / シンクロトロン放射光 / X線 / 電子相関

Research Abstract

In this project we have performed the combinational photoemission spectroscopy using 3D soft x-ray angle-resolved, hard x-ray, and extremely low-energy photoemission in order to reveal the bulk electronic structure of strongly correlated electron systems. We have also developed a novel technique of photoemission called as polarization-dependent hard x-ray photoemission, by which the orbital distributions to the valence bands in solids can be detected. Actually we have found that the orbital symmetry of the conduction electrons are mutually and qualitatively different between gold and silver by using this technique.

Research Products

• [Journal Article] Hard x-ray photoelectron spectroscopy of the metal-insulator transition in LiRh2O4 (2011)
  • Author(s): Y.Nakatsu, A.Sekiyama, S.Imada, Y.Okamoto, S.Niitaka, H.Takagi, A.Higashiya, M.Yabashi, K.Tamasaku, T.Ishikawa, S.Suga
  • Journal Title: Phys.Rev.B 83 Pages: 115120-115121-115125
  • Peer Reviewed
• [Journal Article] High resolution, low hν photoelectron spectroscopy with the use of a microwave excited rare gas lamp and ionic crystal filters (2010)
  • Author(s): S.Suga, A.Sekiyama(2番目), G.Funabashi, 他16名
  • Journal Title: Rev.Sci.Instrum 81 Pages: 105111-105111-105118
  • Peer Reviewed
• [Journal Article] Electron correlation in the FeSe superconductor studied by bulk-sensitive photoemission spectroscopy (2010)
  • Author(s): A.Yamasaki, Y.Matsui, S.Imada, K.Takase, H.Azuma, T.Muro, Y.Kato, A.Higashiya, A.Sekiyama(9番目), 他12名
  • Journal Title: Phys.Rev.B 82 Pages: 184511-184511-184517
  • Peer Reviewed
• [Journal Article] ARPES Spectral Functions and Fermi Surface for La1.86Sr0.14CuO4 Compared with LDA plus DMFT + Σ(k) Calculations (2010)
  • Author(s): I.A.Nekrasov, E.E.Kokorina, E.Z.Kuchinskii, M.V.Sadovskii, S.Kasai, A.Sekiyama, S. Suga
  • Journal Title: Journal of Experimental and Theoretical Physics (JETP) 110 Pages: 989-994
  • Peer Reviewed
• [Journal Article] Soft X-ray ARPES and Fermiology of strongly correlated electron systems and PES by hard X-ray and extremely low energy photons (2010)
  • Author(s): S.Suga, A.Sekiyama
  • Journal Title: J.Electron Spectrosc.Relat.Phenomen 181 Pages: 48-55
  • Peer Reviewed
• [Journal Article] Polaronic behavior of photoelectron spectra of Fe3O4 revealed by both hard X-ray and extremely low energy photons (2010)
  • Author(s): M.Kimura, H.Fujiwara, A.Sekiyama, J.Yamaguchi, K.Kishimoto, H.Sugiyama, G.Funabashi, S.Imada, S.Iguchi, Y.Tokura, A.Higashiya, M.Yabashi, K.Tamasaku, T.Ishikawa, T.Ito, S.Kimura, S.Suga
  • Journal Title: J. Phys. Soc. Jpn 79 Pages: 064710-06711-064715
  • Peer Reviewed
• [Journal Article] The prominent 5d-orbital contribution to the conduction electrons in gold (2010)
  • Author(s): A.Sekiyama, J.Yamaguchi, A.Higashiya, M.Obara, H.Sugiyama, M.Y.Kimura, S.Suga, S.Imada, I.A.Nekrasov, M.Yabashi, K.Tamasaku, T.Ishikawa
  • Journal Title: New J.Phys 12 Pages: 043045-043041-043011
  • Peer Reviewed
• [Journal Article] Hard x-ray photoelectron spectroscopy of metal-insulator transition in V6O13 (2010)
  • Author(s): S.Suga, A.Sekiyama, M.Obara, J.Yamaguchi, M.Kimura, H.Fujiwara, A.Irizawa, K.Yoshimura, M.Yabashi, K.Tamasaku, A.Higashiya, T.Ishikawa
  • Journal Title: J.Phys.Soc.Jpn 79 Pages: 044713-044711-044716
  • Peer Reviewed
• [Journal Article] Photoelectron spectroscopy of LiV2O4 with photons from 8.4 to 8100 eV : Bulk sensitivity, hybridization, and recoil effects (2010)
  • Author(s): S.Suga, A.Sekiyama, H.Fujiwara, Y.Nakatsu, J.Yamaguchi, M.Kimura, K.Murakami, S.Niitaka, H.Takagi, M.Yabashi, K.Tamasaku, A.Higashiya, T.Ishikawa, I.Nekrasov
  • Journal Title: J.Phys.Soc.Jpn 79 Pages: 044711-044711-044716
  • Peer Reviewed
• [Journal Article] V-V dimerization effects on bulk-sensitive hard x-ray photoemission spectra for Magneli phase vanadium oxides (2010)
  • Author(s): M.Obara, A.Sekiyama, S.Imada, J.Yamaguchi, T.Miyamachi, T.Balashov, W.Wulfheckel, M.Yabashi, K.Tamasaku, A.Higashiya, T.Ishikawa, K.Fujiwara, H.Takagi, S.Suga
  • Journal Title: Phys.Rev.B 81 Pages: 113107-113101-113104
  • Peer Reviewed
• [Journal Article] Strongly correlated electronic states of Yb1-xLuxB12 and Sm1-yEuyB6 studied by highly bulk-sensitive photoelectron spectroscopy (2010)
  • Author(s): J.Yamaguchi, A.Sekiyama, S.Imada, A.Higashiya, K.Tamasaku, M.Yabashi, T.Ishikawa, T.Ito, S.Kimura, F.Iga, T.Takabatake, S.Yeo, S.-I.Lee, H.-D.Kim, S.Suga
  • Journal Title: J.Phys.: Conf.Ser 200 Pages: 012230-1221-12234
  • Peer Reviewed
• [Journal Article] ~8 keV photoemission of the metal-insulator transition system VO2 (2009)
  • Author(s): S.Suga, A.Sekiyama, S.Imada, T.Miyamachi, H.Fujiwara, A.Yamasaki, K.Yoshimura, K.Okada, M.Yabashi, K.Tamasaku, A.Higashiya, T.Ishikawa
  • Journal Title: New J.Phys 11 Pages: 103015-103011-103012
  • Peer Reviewed
• [Journal Article] Novel behaviors in rare-earth-filled skutterudites studied by bulk-sensitive photoemission spectroscopy (2009)
  • Author(s): A.Yamasaki, S.Imada, A.Sekiyama(3番目), H.Fujiwara, M.Yano, 他12名
  • Journal Title: Int.J.Mat.Res 100 Pages: 1249-1251
  • Peer Reviewed
• [Journal Article] Do all nuclei recoil on photoemission in compounds? (2009)
  • Author(s): S.Suga, A.Sekiyama, H.Fujiwara, Y.Nakatsu, T.Miyamachi, S.Imada, P.Baltzer, S.Niitaka, H.Takagi, K.Yoshimura, M.Yabashi, K.Tamasaku, A.Higashiya, T.Ishikawa
  • Journal Title: New J.Phys 11 Pages: 073025-073021-073029
  • Peer Reviewed
• [Journal Article] Soft x-ray angle-resolved photoemission study of YbCu2Ge2
  • Author(s): A.Yasui, S.-I.Fujimori, I.Kawasaki, T.Okane, Y.Takeda, Y.Saitoh, H.Yamagami, A.Sekiyama, R.Settai, T.D.Matsuda, Y.Haga, Y.Onuki
  • Journal Title: J.Phys.: Conf.Ser (印刷中)
  • Peer Reviewed
• [Journal Article] Unraveling Genuine First Order Bulk Valence Transition and Kondo Resonance Behaviors in YbInCu4 by High Energy Photoemission Spectroscopy
  • Author(s): S.Suga, A.Sekiyama, S.Imada, J.Yamaguchi, A.Shigemoto, A.Irizawa, K.Yoshimura, M.Yabashi, K.Tamasaku, A.Higashiya, T.Ishikawa
  • Journal Title: J.Phys.Soc.Jpn 782009 Pages: 074704-074701-074705
  • Peer Reviewed
• [Presentation] Bulk-sensitive photoemission spectroscopy of strongly correlated electron systems (2010)
  • Author(s): A.Sekiyama,
  • Organizer: The 15th Academic Exchange Seminar between Shanghai Jiao Tong University and Osaka University
  • Place of Presentation: 上海
  • Year and Date: 2010-10-22
• [Presentation] Probing orbital contribution to the conduction electrons in gold and silver by linear polarization-dependent hard x-ray photoemission spectroscopy (2010)
  • Author(s): A.Sekiyama,
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2010-09-24
• [Presentation] Polarization-dependent hard x-ray photoemission spectroscopy : Probing orbital contributions of conduction electrons in solids (2010)
  • Author(s): A.Sekiyama,
  • Organizer: 37-th International Conference on Vacuum Ultraviolet and X-ray Physics (VUVX2010)
  • Place of Presentation: Vancouver, Canada.
  • Year and Date: 2010-07-14
• [Presentation] Bulk-sensitive photoemission spectroscopy of correlated electron systems (2010)
  • Author(s): A.Sekiyama,
  • Organizer: International Conference on Core Research and Engineering Science of Advanced Materials
  • Place of Presentation: 大阪大学
  • Year and Date: 2010-06-03
• [Presentation] 広エネルギー領域光電子分光によるバルク電子状態の研究 (2010)
  • Author(s): 関山明
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-21
• [Presentation] 多結晶金及び銀の偏光依存硬X線価電子帯光電子分光:d軌道成分の伝導電子への寄与 (2010)
  • Author(s): 関山明
  • Organizer: 第23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: イーグレ姫路
  • Year and Date: 2010-01-07
• [Presentation] Three-dimensional soft x-ray ARPES and polarization-dependent hard x-ray photoemission study of strongly correlated electron systems (2009)
  • Author(s): A.Sekiyama,
  • Organizer: 11th International Conference on Electronic Spectroscopy and Structure (ICESS-11)
  • Place of Presentation: 奈良県新公会堂
  • Year and Date: 2009-10-08
• [Presentation] Hard X-ray and Extremely Low Energy Photoemission Studies of Kondo Semiconductor alloys Sm1-xEuxB6 (2009)
  • Author(s): J.Yamaguchi
  • Organizer: 11th International Conference on Electronic Spectroscopy and Structure (ICESS-11)
  • Place of Presentation: 奈良県新公会堂
  • Year and Date: 2009-10-08
• [Presentation] Polarization-dependent hard x-ray photoemission study of polycrystalline LiRh2O4 (2009)
  • Author(s): 関山明
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-26
• [Presentation] マルチフェロイックスCuFe1-xNixO2のバルク敏感高エネルギー光電子分光 (2009)
  • Author(s): 関山明
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-25
• [Presentation] Strongly correlated electronic states of Yb1-xLuxB12 and Sm1-yEuyB6 studied by highly bulk-sensitive photoelectron spectroscopy (2009)
  • Author(s): J.Yamaguchi
  • Organizer: The International Conference on Magnetism - ICM 2009
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Remarks] ホームページ等
  • URL: http://decima.mp.es.osaka-u.ac.jp