Photoinduced superconducting phase transition dynamics in Bi-based high-Tc superconductors
| Project/Area Number |
24340063
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics I
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| Research Institution | Hokkaido University |
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Principal Investigator |
TODA YASUNORI 北海道大学, 工学(系)研究科(研究院), 教授 (00313106)
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| Co-Investigator(Kenkyū-buntansha) |
ODA Migaku 北海道大学, 大学院理学研究院, 教授 (70204211)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Keywords | 光物性 / 光誘起相転移 / ポンププローブ分光 / 高温超伝導体 / 銅酸化物 / 擬ギャップ / 光誘起超伝導相転移 / フェムト秒光パルス / 光誘起相分離 / 電子格子相互作用 |
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| Outline of Final Research Achievements |
Photoinduced phase transition dynamics in the superconducting and pseudogap states of Bi-based high-Tc superconductors have been investigated using ultrashort pulses and the following conclusions are obtained: 1) existence of a spontaneous symmetry breaking in the psuedogap state, 2) distinct relationship between phase coherence and gap formation, 3) absence of long-range electronic ordering and carrier lorcalization in the pseudogap formation, 4) enhanced contribution of the pseudogap to the gap formation in the underdoped sample.
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] Strain-Induced Enhancement of the Electron Energy Relaxation in Strongly Correlated Superconductors2014
Author(s)
C. Gadermaier, V.V. Kabanov, A.S. Alexandrov, L. Stojchevska, T. Mertelj, C. Manzoni, G. Cerullo, N.D. Zhigadlo, J. Karpinski, Y.Q. Cai, X. Yao, Y. Toda, M. Oda, S. Sugai, and D. Mihailovic
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Journal Title
Phys. Rev. X
Volume: 4
Issue: 1
Pages: 11056-11056
DOI
Related Report
Peer Reviewed
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[Presentation] Time-resolved polarimetry for quasi-particle dynamics in Bi22122014
Author(s)
Y. Toda, K. Watanabe, S. Tsuchiya, T. Kurosawa, M. Oda, T. Mertelj, I. Madan, V. V. Kabanov, D. Mihailovic
Organizer
10th International Conference on New Theories, Discoveries, and Applications of Superconductors and Related Materials, New3SC-10
Place of Presentation
Chongqing, China
Year and Date
2014-10-26 – 2014-10-29
Related Report
Invited
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[Presentation] Polarized femtosecond spectroscopy for quasiparticle dynamics associated with symmetry breaking in Bi2Sr2CaCu2O8+d2014
Author(s)
Y. Toda, K. Watanabe, S. Tsuchiya, T. Kurosawa, M. Oda, T. Mertelj, I. Madan, V. V. Kabanov, D. Mihailovic
Organizer
5th International Conference on Photo Induced Phase Transitions and Cooperative Phenomena (PIPT5)
Place of Presentation
Hotel Golf, Bled, Slovenia
Year and Date
2014-06-08 – 2014-06-13
Related Report
Invited
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[Presentation] Impact of pseudogap on photoinduced superconducting phase transition in underdoped Bi22122012
Author(s)
Y. Toda, T. Mertelj, P. Kusar, T. Kurosawa, M. Oda, M. Ido, D. Mihailovic
Organizer
9th International Conference on New Theories, Discoveries, and Applications of Superconductors and Related Materials, New3SC-9
Place of Presentation
Frascati - Rome, Italy(招待講演)
Year and Date
2012-09-19
Related Report
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