Metal-insulator transition and orbital state of quasi-one-dimensional vanadium system
Project/Area Number |
23540412
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Hiroshima University |
Principal Investigator |
SATO Hitoshi 広島大学, 放射光科学研究センター, 准教授 (90243550)
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Co-Investigator(Kenkyū-buntansha) |
SAWADA Masahiro 広島大学, 放射光科学研究センター, 准教授 (00335697)
TANAKA Arata 広島大学, 先端物質科学研究科, 助教 (70253052)
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Co-Investigator(Renkei-kenkyūsha) |
NAKAMURA Hiroyuki 京都大学, 大学院・工学研究科, 教授 (00202218)
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Project Period (FY) |
2011 – 2013
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
Keywords | 金属絶縁体転移 / 擬一次元系 / バナジウム系 / 光電子分光 / 線二色性分光 / 共鳴散乱 / 軟X線共鳴散乱 |
Research Abstract |
In order to reveal the mechanism of metal - insulator transition of quasi-one-dimensional BaVS3 at 70 K, we have investigated the change of the V 3d state across the transition mainly by means of angle-resolved photoemission spectroscopy (ARPES) and soft x-ray absorption linear dichroism spectroscopy (LD). ARPES studies revealed that the a1g orbital forms a gap at 150 - 120 K, far above 70 K, due to one-dimensional instability, while the egp orbital forms a gap just at 70 K due to localization. LD studies, on the other hand, revealed that the occupancy ratio of the V 3d orbitals is unchanged across the transition. Theoretical analyses of the LD spectra highly suggest that the V 3d orbitals aligns with egp-egp-egp-a1g order along the V chain.
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Hard x-ray photoemission spectroscopy of quasi-one-dimensional BaVS32014
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, Y. Utsumi, K. Mimura, S. Motonami, K. Shimada, S. Ueda, K. Kobayashi, H. Namatame, M. Taniguchi
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Journal Title
J. Phys. Soc. Conf. Proc.
Volume: 1
DOI
Related Report
Peer Reviewed
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[Journal Article] Bulk nature of layered perovskite iridates beyond the Mott scenario : An approach from a bulk sensitive photoemission study2014
Author(s)
A. Yamasaki, S. Tachibana, H. Fujiwara, A. Higashiya, A. Irizawa, O. Kirilmaz, F. Pfaff, P. Scheiderer, J. Gabel, M. Sing, T. Muro, M. Yabashi, K. Tamasaku, H. Sato, 他13名
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Journal Title
Phys. Rev. B
Volume: Vol.89
Related Report
Peer Reviewed
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[Journal Article] Pressure-induced valence change of YbNiGe3 investigated by resonant x-ray emission spectroscopy at the Yb L-3 edge2014
Author(s)
Sato, H, Yamaoka, H, Utsumi, Y, Nagata, H, Avila, MA, Ribeiro, RA, Umeo, K, Takabatake, T, Zekko, Y, Mizuki, J, Lin, JF, Hiraoka, N, Ishii, H, Tsuei, KD, Namatame, H, Taniguchi, M
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Journal Title
PHYSICAL REVIEW B
Volume: 89
Issue: 4
Pages: 45112-45112
DOI
Related Report
Peer Reviewed
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[Journal Article] Hard x-ray photoemission study of the covalent-chain antiferromagnets TlFeS2 and TlFeSe22013
Author(s)
K. Mimura, S. Motonami, Y. G. Shim, K. Wakita, Z. Jahangirli, O. Alekperov, N. Mamedov, H. Sato, Y. Utsumi, S. Ueda, K. Shimada, Y. Taguchi, K. Kobayashi, G. Bihlmayer, H. Namatame, M. Taniguchi
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Journal Title
Phys. Status Solidi C
Volume: 10
Issue: 7-8
Pages: 989-992
DOI
Related Report
Peer Reviewed
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[Journal Article] Electronic structures of ternary-layered semiconductor TlGaSe2 investigated by photoemission spectroscopy2013
Author(s)
S. Motonami, K. Mimura, Y. G. Shim, K. Wakita, H. Sato, Y. Utsumi, S. Ueda, M. Nakatake, K. Shimada, Y. Taguchi, K. Kobayashi, H. Namatame, M. Taniguchi, G. Orudzhev, N. Mamedov
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Journal Title
Phys. Status Solidi C
Volume: 10
Issue: 7-8
Pages: 1001-1004
DOI
Related Report
Peer Reviewed
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[Journal Article] Fermi-surface reconstruction involving two van Hove singularities across the antiferromagnetic transition in BaFe2As22013
Author(s)
Y. Nakashima, A. Ino, S. Nagato, H. Anzai, H. Iwasawa, Y. Utsumi, H. Sato, M. Arita, H. Namatame, M. Taniguchi, T. Oguchi, Y. Aiura, I. Hase, K. Kihou, C. H. Lee, A. Iyo, and H. Eisaki
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Journal Title
Solid State Commun.
Volume: 157
Pages: 16-20
DOI
Related Report
Peer Reviewed
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[Journal Article] Inverse-Photoemission Spectroscopy of Iron-Based Superconductors NdFeAsO1-δ and Ba(Fe1-xCox)2As2012
Author(s)
H. Sato, Y. Utsumi, O. Morimoto, Y. Nakashima, A. Ino, Y. Aiura, A. Iyo, H. Kito, K. Miyazawa, P. M. Shirage, H. Eisaki, C. H. Lee, K. Kihou, H. Namatame, M. Taniguchi
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Journal Title
J. Phys.: Conf. Ser.
Volume: 391
Pages: 012137-012137
DOI
Related Report
Peer Reviewed
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[Journal Article] Valence states and spin structure of spinel FeV2O4 with different orbital degrees of freedom2012
Author(s)
J.-S. Kang, Jihoon Hwang, D. H. Kim, Eunsook Lee, W. C. Kim, C. S. Kim, Sangil Kwon, Soonchil Lee, T. Ueno, M. Sawada, Bongjae Kim, Beom Hyun Kim, B. I. Min
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Journal Title
Phys. Rev. B
Volume: Vol.85
Issue: 16
DOI
NAID
Related Report
Peer Reviewed
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[Presentation] Hard x - ray photoemission spectroscopy of quasi - one - dimensional BaVS32013
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, Y. Utsumi, K. Mimura, S. Motonami, K. Shimada, S. Ueda, K. Kobayashi, H. Namatame, M. Taniguchi
Organizer
12th Asia Pacific Physics Conference of AAPPS (APPC12)
Place of Presentation
幕張
Related Report
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[Presentation] Hard x-ray photoemission spectroscopy of quasi-one-dimensional BaVS32013
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, Y. Utsumi, K. Mimura, S. Motonami, K. Shimada, S. Ueda, K. Kobayashi, H. Namatame, M. Taniguchi
Organizer
The 12th Asia Pacific Physics Conference of AAPPS (APPC12)
Place of Presentation
Makuhari,Japan
Related Report
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[Presentation] Hard x - ray photoemission spectrsocopy of quasi - one - dimensional BaVS32012
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, Y. Utsumi, K. Mimura, S. Motonami, K. Shimada, S. Ueda, K. Kobayashi, H. Namatame, M. Taniguchi
Organizer
12th International Conference on Electronic Spectroscopy and Structure
Place of Presentation
Saint-Malo (France)
Related Report
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[Presentation] Polarization dependent angle - resolved photoemission study on quasi - one - dimensional BaVS32012
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, H. Hayashi, J. Jiang, H. Iwasawa, K. Shimada, M. Atita, M. Nakatake, H. Namatame, M. Taniguchi
Organizer
ISSP International Workshop(3D-AINAS 2012)
Place of Presentation
東京大学
Related Report
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[Presentation] BaVS3の硬 X 線光電子分光2012
Author(s)
佐藤仁, 飛松浩明, 田中新, 中村裕之, 内海有希, 三村功次郎, 本並哲, 島田賢也, 上田茂典, 小林啓介, 生天目博文, 谷口雅樹
Organizer
日本物理学会第67回年次大会
Place of Presentation
関西学院大学
Related Report
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[Presentation] 擬一次元系BaVS3の硬X 線光電子分光2012
Author(s)
佐藤仁, 飛松浩明, 中村裕之, 田中新, 内海有希, 三村功次郎, 本並哲, 上田茂典, 山下良之 , 吉川英樹, 小林啓介, 島田賢也, 生天目博文, 谷口雅樹
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
鳥栖市民文化会館・中央公民館
Related Report
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[Presentation] H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, H. Hayashi, J. Jiang, H. Iwasawa, K. Shimada, M. Atita, M. Nakatake, H. Namatame, M. Taniguchi2012
Author(s)
Polarization-Dependent Angle-Resolved Photoemission Study on Quasi-One-Dimensional BaVS3
Organizer
ISSP International Workshop (3D-AINAS 2012) 2012/8/6-8 Kashiwa, Japan
Place of Presentation
Kashiwa, Japan
Related Report
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[Presentation] Hard x-ray photoemission spectrsocopy of quasi-one-dimensional BaVS32012
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, Y. Utsumi, K. Mimura, S. Motonami, K. Shimada, S. Ueda, K. Kobayashi, H. Namatame, M. Taniguchi
Organizer
12th International Conference on Electronic Spectroscopy and Structure
Place of Presentation
Saint-Malo, France
Related Report
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[Presentation] 角度分解光電子分光によるBaVS3の電子状態の研究2011
Author(s)
佐藤仁, 飛松浩明, 田中新, 中村裕之, 林博和, 姜健, 羽渕隆文, 平山大裕, 岩澤英明, 島田賢也, 有田将司, 生天目博文, 谷口雅樹
Organizer
日本物理学会2011年秋季大会
Place of Presentation
富山大学
Related Report
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[Presentation] Angle - resolved photoemission study on quasi - one - dimensional BaVS32011
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, H. Hayashi, J. Jiang, T. Habuchi, D. Hirayama, H. Iwasawa, K. Shimada, M. Arita, M. Nakatake, H. Namatame, M. Taniguchi
Organizer
Strongly Correlated Electron Systems 2011 (SCES'11)
Place of Presentation
Cambridge (UK)
Related Report
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[Presentation] Angle-resolved photoemission study on quasi-one-dimensional BaVS32011
Author(s)
H. Sato, K. Tobimatsu, A. Tanaka, H. Nakamura, H. Hayashi, J. Jiang, T. Habuchi, D. Hirayama, H. Iwasawa, K. Shimada, M. Arita, M. Nakatake, H. Namatame, M. Taniguchi
Organizer
SCES2011
Place of Presentation
Cambridge, UK
Related Report
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