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Electronic properties and structures in multi-orbital strongly correlated system

Research Project

Project/Area Number 22684017
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionThe University of Tokyo

Principal Investigator

ISHIZAKA Kyoko  東京大学, 大学院・工学系研究科, 准教授 (20376651)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥26,520,000 (Direct Cost: ¥20,400,000、Indirect Cost: ¥6,120,000)
Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥21,970,000 (Direct Cost: ¥16,900,000、Indirect Cost: ¥5,070,000)
Keywords軌道自由度 / 強相関電子系 / 光電子分光 / 超伝導
Research Abstract

We investigated the electronic structure of multi-orbital systems, which show anomalous electronic properties such as metal-insulator transition, superconductivity, quantum criticality, magnetic order, and spin-splitting induced by spin-orbit interaction. The mechanisms of anomalous and novel physical properties were clarified by means of angular-resolved photoemission spectroscopy using a variety of light sources including synchrotrons and lasers, thus enabling the high-resolution, polarization-dependet, and time-resolved measurements.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (33 results)

All 2012 2011 2010

All Journal Article (20 results) (of which Peer Reviewed: 9 results) Presentation (12 results) Book (1 results)

  • [Journal Article] Pseudogap-related charge dynamics in the layered nickelate RNiO4(x~1)2012

    • Author(s)
      M. Uchida, Y. Yamasaki, Y. Kaneko, K.Ishizaka, J. Okamoto, H. Nakao, Y. Murakami,and Y. Tokura
    • Journal Title

      Phys.Rev.B

      Volume: Vol.86,No.16,

    • Related Report
      2011 Final Research Report
  • [Journal Article] Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting2012

    • Author(s)
      M.Sakano,J.Miyawaki, A. Chainani, Y.Takata, T. Sonobe, T. Shimojima, M. Oura, S. Shin, M. S. Bahramy, R. Arita, N. Nagaosa, H. Murakawa,Y. Kaneko, Y. Tokura, and K. Ishizaka
    • Journal Title

      Phys. Rev. B

      Volume: Vol.86, No. 8,

    • Related Report
      2011 Final Research Report
  • [Journal Article] Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe2(As, P)2 with low energy photons2012

    • Author(s)
      T. Shimojima, F. Sakaguchi, K. Ishizaka, Y. Ishida, W. Malaeb, T. Yoshida, S. Ideta, A. Fujimori, T. Kiss, M. Okawa, T. Togashi, C. T. Chen, S. Watanabe, Y. Nakashima, A. Ino, H. Anzai, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, M. Nakajima, S. Uchida, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, A. Chainani, and S. Shin
    • Journal Title

      Solid State Communications

      Volume: Vol.152, No. 8, Pages: 695-700

    • Related Report
      2011 Final Research Report
  • [Journal Article] Pseudogap-related charge dynamics in the layered nickelate R2-xSrxNiO4 (x^1)2012

    • Author(s)
      M. Uchida
    • Journal Title

      Phys. Rev. B

      Volume: 86 Issue: 16

    • DOI

      10.1103/physrevb.86.165126

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe2(As, P)2 with low energy photons2012

    • Author(s)
      T. Shimojima
    • Journal Title

      Solid State Commun.

      Volume: 152 Issue: 8 Pages: 695-700

    • DOI

      10.1016/j.ssc.2011.12.032

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting2012

    • Author(s)
      M. Sakano
    • Journal Title

      Phyiscal Review B

      Volume: 86 Issue: 8

    • DOI

      10.1103/physrevb.86.085204

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Orbital characters of three-dimensional Fermi surfaces in Eu2-xSrxNiO4 as probed by soft-x- ray angle-resolvedphotoemission spectroscopy2011

    • Author(s)
      M. Uchida, K. Ishizaka, P. Hansmann, X. Yang, M. Sakano, J. Miyawaki, R. Arita, Y. Kaneko, Y. Takata, M. Oura, A. Toschi, K. Held, A. Chainani, O. K. Andersen, S. Shin, and Y. Tokura
    • Journal Title

      Phys. Rev. B

      Volume: Vol.84, No.24,

    • Related Report
      2011 Final Research Report
  • [Journal Article] Giant Rashba-type spin splitting in bulk BiTeI2011

    • Author(s)
      K. Ishizaka, M. S. Bahramy, H. Murakawa, M. Sakano, T. Shimojima, T. Sonobe, K. Koizumi,S. Shin, H. Miyahara, A. Kimura, K. Miyamoto, T. Okuda, H. Namatame, M. Taniguchi, R. Arita, N. Nagaosa, K. Kobayashi, Y. Murakami, R. Kumai, Y. Kaneko, Y. Onose, and Y. Tokura
    • Journal Title

      Nature Mater.

      Volume: Vol. 10, No. 7, Pages: 521-526

    • Related Report
      2011 Final Research Report
  • [Journal Article] Electronic structure of an antiferromagnetic metal: CaCrO32011

    • 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

      Phys. Rev. B

      Volume: Vol.83,No.16.

    • Related Report
      2011 Final Research Report
  • [Journal Article] Orbital-Independent Superconducting Gaps in Iron-Pnictides2011

    • Author(s)
      T. Shimojima, F. Sakaguchi, K. Ishizaka, Y. Ishida, T. Kiss, M. Okawa, T. Togashi, C.-T. Chen, S. Watanabe, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, K. Ohgushi, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, A. Chainani, and S. Shin
    • Journal Title

      Science

      Volume: Vol. 332, No. 6029, pp. Pages: 564-567

    • Related Report
      2011 Final Research Report
  • [Journal Article] Femtosecond core-level photoemision spectroscopy on1T-TaS2 using a 60 eV laser source2011

    • Author(s)
      K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin
    • Journal Title

      Phys. Rev. B

      Volume: Vol. 83, No. 8

    • Related Report
      2011 Final Research Report
  • [Journal Article] Pseudogap of Metallic Layered Nickelate R2-xSrxNiO4 (R=Nd,Eu) Crystals Measured Using Angle-Resolved Photoemission Spectroscopy2011

    • Author(s)
      M. Uchida, K. Ishizaka, P. Hansmann, Y. Kaneko, Y. Ishida, X. Yang, R. Kumai, A. Toschi, Y. Onose, R. Arita, K. Held, O. K. Andersen, S. Shin, and Y. Tokura
    • Journal Title

      Phys. Rev. Lett.

      Volume: Vol. 106, No. 2,

    • Related Report
      2011 Final Research Report
  • [Journal Article] Orbital-Independent Superconducting Gaps in Iron-Pnictides2011

    • Author(s)
      T.Shimojima, Y.Matsuda, 他18名
    • Journal Title

      Science

      Volume: 332 Issue: 6029 Pages: 564-567

    • DOI

      10.1126/science.1202150

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Orbital characters of three-dimensional Fermi surfaces in Eu2-xSrxNiO4 as probed by soft-x-ray angle-resolved photoemission spectroscopy2011

    • Author(s)
      M.Uchida, et al
    • Journal Title

      Physical Review B

      Volume: 84 Issue: 24 Pages: 2411091-5

    • DOI

      10.1103/physrevb.84.241109

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Giant Rashba-type spin splitting in bulk BiTeI2011

    • Author(s)
      K.Ishizaka
    • Journal Title

      Nature Mat.

      Volume: 10 Issue: 7 Pages: 521-526

    • DOI

      10.1038/nmat3051

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pseudogap of Metallic Layered Nickelate R_<2-x>Sr_XNiO_4 (R=Nd,Eu) Crystals Measured Using Angle-Resolved Photoemission Spectroscopy2011

    • Author(s)
      M.Uchida, K.Ishizaka, P.Hansmann, Y.Kaneko, Y.Ishida, X.Yang, R.Kumai, A.Toschi, Y.Onose, R.Arita, K.Held, O.K.Andersen, S.Shin, Y.Tokura
    • Journal Title

      Physical Review Letters

      Volume: 106

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source2011

    • Author(s)
      K.Ishizaka, T.Kiss, T.Yamamoto, Y.Ishida, T.Saitoh, M.Matsunami, R.Eguchi, T.Ohtsuki, A.Kosuge, T.Kanai, M.Nohara, H.Takagi, S.Watanabe, S.Shin
    • Journal Title

      Physical Review B

      Volume: 83

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strong valence fluctuation in he quantum critical heavy fermion superconductor-YbAlB4: A hard x-ray photoemission study2010

    • 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. Horie, S. Nakatsuji, and S. Shin
    • Journal Title

      Phys. Rev. Lett.

      Volume: Vol. 104, No. 24,

    • Related Report
      2011 Final Research Report
  • [Journal Article] Evidence for a correlated insulator to antiferromagnetic metal transition in CrN2010

    • 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

      Phys. Rev. Lett.

      Volume: Vol.104, No. 23,

    • Related Report
      2011 Final Research Report
  • [Journal Article] Strong valence fluctuation in the quantum critical heavy fermion superconductor beta-YbA1B4 : A hard x-ray photoemission study2010

    • 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.Horie, S.Nakatsuji, S.Shin
    • Journal Title

      Physical Review Letters

      Volume: 104

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] BaFe2(As,P)2 における擬ギャップ" 園2012

    • Author(s)
      部竜也、石坂香子 他 20 名
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-20
    • Related Report
      2011 Final Research Report
  • [Presentation] 広い温度領域におけるBa1-xKxFe2As2の電子状態観測2012

    • Author(s)
      下志万貴博、石坂香子 他18 名
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-20
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 極性半導体BiTeI のサブ表面領域におけ る2次元電子構造2012

    • Author(s)
      坂野昌人、石坂香子 他10 名
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-20
    • Related Report
      2011 Final Research Report
  • [Presentation] 極性半導体BiTeX(X=Cl,Br,I)における伝導帯の電子構造とスピン分裂2012

    • Author(s)
      坂野昌人、石坂香子 他 10 名
    • Organizer
      日本物理学会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-25
    • Related Report
      2011 Final Research Report
  • [Presentation] 極性半導体におけるスピン軌道相互作 用2012

    • Author(s)
      石坂香子
    • Organizer
      応用物理学会シンポジウム「スピントロニクス材料の新展開」
    • Place of Presentation
      早稲田大学 (シンポジウム 講演)
    • Year and Date
      2012-03-15
    • Related Report
      2011 Final Research Report
  • [Presentation] BaFe2(As,P)2における擬ギャップ2012

    • Author(s)
      園部竜也
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2011 Annual Research Report
  • [Presentation] 極性半導体における巨大なラシュバ型スピン分裂2011

    • Author(s)
      石坂香子
    • Organizer
      放射光表面科学研究部会 「ディラック電子と表面電子状態 」
    • Place of Presentation
      タワーホール船堀 (招待講演)
    • Year and Date
      2011-12-16
    • Related Report
      2011 Final Research Report
  • [Presentation] 極性半導体BiTeI におけるラシュバ型ス ピン分裂の観測2011

    • Author(s)
      石坂香子 他18名
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-24
    • Related Report
      2011 Final Research Report
  • [Presentation] 空間反転対称性の破れた層状半導体BiTeIの軟X 線角度分解光電子分光2011

    • Author(s)
      坂野昌人、石坂 香子 他13名
    • Organizer
      日本物理 会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-24
    • Related Report
      2011 Final Research Report
  • [Presentation] レーザー光電子分光によるデツインされたBaFe2As2の電子状態の研究2011

    • Author(s)
      園部竜也、石坂香子 他16名
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-24
    • Related Report
      2011 Final Research Report
  • [Presentation] レーザー光電子分光によるデツインされたBaFe2As2の電子状態の研究22011

    • Author(s)
      園部竜也
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Related Report
      2011 Annual Research Report
  • [Presentation] Observation of bulk Rashba-splitting in BiTel2010

    • Author(s)
      K.Ishizaka, H.Murakawa, Y.Kaneko, T.Shimojima, M.Sakano, T.Sonobe, Y.Ishida, S.Shin, T.Okuda, A.Kimura, R.Kumai, M.S.Bahramy, R.Arita, Y.Tokura
    • Organizer
      Opening Symposium of QS^2C Theory Forum
    • Place of Presentation
      埼玉県和光市理化学研究所
    • Year and Date
      2010-09-30
    • Related Report
      2010 Annual Research Report
  • [Book] 十倉好紀「極性半導体における巨大ラシュバ型スピン分裂」2012

    • Author(s)
      石坂香子、M. S. Bahramy、村川寛、有田亮太郎、永長直人
    • Publisher
      固体物理 3月号 トピックス Vol.47
    • Related Report
      2011 Final Research Report

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Published: 2010-08-23   Modified: 2020-05-15  

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