Development of micro-imaging-spectroscopy system utilizing VUVSX synchrotron radiation source

• Project/Area Number: 26610085
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: Nagoya University
• Principal Investigator: Ito Takahiro 名古屋大学, シンクロトロン光研究センター, 准教授 (50370127)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 光物性 / 放射光 / 強相関電子系 / ARPES / XAS / VUVSX

Outline of Final Research Achievements

We have developed a new spectroscopic research technique “VUVSX-micro-imaging spectroscopy” utilizing micro-focus and elemental selectivity of the VUVSX synchrotron radiation source. We applied the technique to Sm1-xYxS in which existence of the micrometer scale surface domain has been expected and to quasi-one dimensional micrometer size crystal of Ba3Co2O6(CO3)0.7. As results, we have found that the coexistence of localized and itinerant Sm 4f electrons in black-metallic Sm1-xYxS and the narrow band dispersion of t2g AB orbital below the Fermi level originating from the effect of CoO6－CO3 inter-chain interactions in Ba3Co2O6(CO3)0.7.

Research Products

• [Journal Article] Orbital-dependent electron correlation in LiFeAs revealed by angle-resolved photoemission spectroscopy (2016)
  • Author(s): T. Hajiri, T. Ito, M. Matsunami, B. H. Min, Y. S. Kwon, K. Kuroki, S. Kimura
  • Journal Title: PHYSICAL REVIEW B Volume: 93 Issue: 2 Pages: 024503-024503
  • DOI: 10.1103/physrevb.93.024503
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Direct measurement of conduction miniband structure in superlattice by visible-light photoemission spectroscopy (2015)
  • Author(s): Fumiaki Ichihashi, Daisuke Shimura, Kenji Nishitani, Tatsuki Kawaguchi, Masashi Kuwahara, Takao Ito, Shingo Harada, Hiroyasu Katsuno, Masaki Tagawa, Toru Ujihara
  • Journal Title: 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC) Volume: 40 Pages: 2882-2885
  • DOI: 10.1109/pvsc.2014.6925534
• [Journal Article] Origin of the black-golden transition in Sm1－xYxS (2015)
  • Author(s): K. Imura, M. Saito, M. Kaneko, T. Ito, T. Hajiri, M. Matsunami, S. Kimura, K. Deguchi, H. S. Suzuki, N. K. Sato
  • Journal Title: Journal of Physics: Conference Series Volume: 592 Pages: 0120281-6
  • DOI: 10.1088/1742-6596/592/1/012028
  • Peer Reviewed / Open Access
• [Journal Article] Fermi Surface Variation of Ce 4f-Electrons in Hybridization Controlled Heavy-Fermion Systems (2015)
  • Author(s): H.J. Im, T. Ito, H. Miyazaki, S. Kimura, Y.S. Kwon, Y. Saitoh, S.-I. Fujimori, A. Yasui, H. Yamagami
  • Journal Title: Solid State Communications Volume: 209-210 Pages: 45-48
  • DOI: 10.1016/j.ssc.2015.03.005
  • Peer Reviewed
• [Journal Article] Polarization-Dependent Three-Dimensional Angle-Resolved Photoemission Spectroscopy of BaFe1.8Co0.2As2 (2014)
  • Author(s): T. Hajiri, T. Ito, M. Matsunami, B. H. Min, Y. S. Kwon, S. Kimura
  • Journal Title: JPS Conference Proceedings Volume: 3 Pages: 015028-015028
  • DOI: 10.7566/jpscp.3.015028
  • Peer Reviewed
• [Journal Article] Angle-Resolved Photoemission Study on Insulator-to-Metal Transition of Sm1-xYxS (2014)
  • Author(s): M. Kaneko, M. Saito, T. Ito, K. Imura, T. Hajiri, M. Matsunami, S. Kimura, H. S. Suzuki, N. K. Sato
  • Journal Title: JPS Conference Proceedings Volume: 3 Pages: 011080-011080
  • DOI: 10.7566/jpscp.3.011080
  • Peer Reviewed
• [Journal Article] Anomalous Superconducting-Gap Structure of Slightly Overdoped Ba(Fe1-xCox)2As2 (2014)
  • Author(s): T. Hajiri, T. Ito, M. Matsunami, B. H. Min, Y. S. Kwon, S. Kimura
  • Journal Title: Journal of the Physical Society of Japan Volume: 83 Issue: 9 Pages: 093703-093703
  • DOI: 10.7566/jpsj.83.093703
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Electronic structure of a quasi-one dimensional thermoelectric material Ba3Co2O6(CO3)0.7 studied by angle-resolved photoemission spectroscopy (2016)
  • Author(s): Takahiro Ito, Shougo Kouchi, Tetsuya Hajiri, Masaharu Matsunami, Shin-ichi Kimura, Yasuhiro Shimizu, Yoshiaki Kobayashi, Masayuki Itoh
  • Organizer: International Conference on Low-Energy Electrodynamics in Solids (LEES2016)
  • Place of Presentation: Biwako
  • Year and Date: 2016-05-29
  • Int'l Joint Research
• [Presentation] 成長後急冷型バッファ層フリー単層グラフェンの角度分解光電子分光 (2016)
  • Author(s): 山本功樹, 伊藤孝寛, 包健峰, 乗松航, 松田敬太, 楠美智子
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学泉キャンパス
  • Year and Date: 2016-03-21
• [Presentation] Black-Metallic 相 Sm1-xYxS の 3 次元角度分解光電子分光 (2016)
  • Author(s): 杉原伸太郎,伊藤孝寛,井村敬一郎,羽尻哲也,松波雅治, 木村真一, 鈴木博之,佐藤憲昭
  • Organizer: 第29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: オークビレッジ柏の葉
  • Year and Date: 2016-01-11
• [Presentation] 三次元角度分解光電子分光による擬一次元コバルト酸化物 Ba3Co2O6(CO3)0.7 の電子状態の研究 (2016)
  • Author(s): 河内章吾,伊藤孝寛,羽尻哲也,松波雅治,木村真一,清水康弘,小林義明,伊藤 正行
  • Organizer: 第29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: オークビレッジ柏の葉
  • Year and Date: 2016-01-11
• [Presentation] 擬一次元コバルト酸化物Ba3Co2O6(CO3)0.7の三次元角度分解光電子分光 (2015)
  • Author(s): 河内章吾, 伊藤孝寛, 羽尻哲也, 松波雅治, 木村真一, 清水康弘, 小林義明, 伊藤正行
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学千里山キャンパス
  • Year and Date: 2015-09-19
• [Presentation] TaSi2の角度分解光電子分光 (2015)
  • Author(s): 長崎一也, 伊藤孝寛, 木村真一, 仲村愛, 富崇裕, 大貫惇睦, 播磨尚朝
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学千里山キャンパス
  • Year and Date: 2015-09-18
• [Presentation] 3次元角度分解光電子分光によるSm_0.915_Y_0.085_Sの電子状態の研究 (2015)
  • Author(s): 杉原伸太郎, 伊藤孝寛, 井村敬一郎, 羽尻哲也, 松波雅治, 木村真一, 鈴木博之, 佐藤憲昭
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学千里山キャンパス
  • Year and Date: 2015-09-18
• [Presentation] あいちシンクロトロン光センター真空紫外ー軟X線ビームラインBL7Uの現状 (2015)
  • Author(s): 伊藤孝寛
  • Organizer: 日本真空学会東海支部7月研究例会「大型真空装置の極み・シンクロトロン光の利用 技術」
  • Place of Presentation: あいちシンクロトロン光センター会議室
  • Year and Date: 2015-07-24
  • Invited
• [Presentation] Angle-resolved photoemission study of a quasi-one dimensional thermoelectric material Ba3Co2O6(CO3)0.7 (2015)
  • Author(s): Takahiro Ito, Shougo Kouchi, Tetsuya Hajiri, Masaharu Matsunami, Shin-ichi Kimura, Yasuhiro Shimizu, Yoshiaki Kobayashi, Masayuki Itoh
  • Organizer: International Conference on Magnetism (ICM2015)
  • Place of Presentation: Barcelona
  • Year and Date: 2015-07-09
  • Int'l Joint Research
• [Presentation] 3次元角度分解光電子分光による鉄系高温超伝導体Ca10Pt3As8(Fe2-xAuxAs2)5の電子状態の研究 (2015)
  • Author(s): 羽尻哲也，伊藤孝寛，松波雅治，W. J. Choi，Y. I. Seo，Y. S. Kwon，木村真一
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学早稲田キャンパス
  • Year and Date: 2015-03-24
• [Presentation] 新ビームライン UVSOR BL5U におけるスピン・軌道対称性・運動量分解光電子分光 (2015)
  • Author(s): 田中清尚,大野祐貴,松波雅治,酒井雅弘,近藤直範,堀米利夫,藤澤正美, 羽尻哲也,伊藤孝寛,平原徹,宮崎秀俊, 阿達正浩,許斐太郎,加藤政博,木村真一
  • Organizer: 第28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: 立命館大学びわこ・くさつキャンパス
  • Year and Date: 2015-01-11
• [Presentation] あいち SR 真空紫外・軟 X 線分光ビームライン BL7U の現状 (2015)
  • Author(s): 伊藤孝寛,中村永研,高野琢,杉山陽栄,鎌田雅夫,曽田一雄, 野本豊和, 渡辺義夫,竹田美和,馬場嘉信
  • Organizer: 第28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: 立命館大学びわこ・くさつキャンパス
  • Year and Date: 2015-01-11
• [Presentation] 角度分解光電子分光によるSm1-xYxS およびYbPtSbの電子状態の研究 (2014)
  • Author(s): 伊藤孝寛
  • Organizer: UVSORシンポジウム2014
  • Place of Presentation: 分子科学研究所
  • Year and Date: 2014-11-15
• [Presentation] 角度分解光電子分光によるLuPtSbの電子状態の研究 (2014)
  • Author(s): 立木恵美理，伊藤孝寛，羽尻哲也，木村真一，松波雅治，井村敬一郎，鈴木博之
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学春日井キャンパス
  • Year and Date: 2014-10-10
• [Presentation] Ba3Co2O6(CO3)0.7の角度分解光電子分光 (2014)
  • Author(s): 伊藤孝寛，細川知希，羽尻哲也，松波雅治，木村真一，清水康弘，小林義明，伊藤正行
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学春日井キャンパス
  • Year and Date: 2014-10-09
• [Presentation] Angle-resolved photoemission study of Sm1-xYxS and YbPtSb (2014)
  • Author(s): Takahiro Ito
  • Organizer: ALS User Meeting 2014: Workshop on Strongly Correlated Topological Insulators
  • Place of Presentation: Berkeley
  • Year and Date: 2014-10-07
  • Invited
• [Presentation] Anomalous change of electronic structure of Sm1-xYxS due to black to golden phase transition (2014)
  • Author(s): Takahiro ITO, Masaki KANEKO, Mai SAITO, Keiichiro IMURA, Tetsuya HAJIRI, Masaharu MATSUNAMI, Shin-ichi KIMURA, Hiroyuki S. SUZUKI, Noriaki K. SATO
  • Organizer: International Conference on Strongly Correlated Electron Systems (SCES2014)
  • Place of Presentation: Grenoble
  • Year and Date: 2014-07-07
• [Remarks] 名古屋大学教員データベース
  • URL: http://profs.provost.nagoya-u.ac.jp/view/html/100000087_ja.html