Study for the repeating unit in the charge fluctuated state for the molecular superconductors
| Project/Area Number |
24750127
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Functional materials chemistry
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| Research Institution | Ehime University (2013-2014)
Osaka University (2012) |
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Principal Investigator |
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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 |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 分子性導体 / 有機導体 / 電荷揺らぎ / 振動スペクトル / 電子相関 / 応力実験 / 軌道準位逆転 / 分子性固体・有機導体 / 超伝導 / 振動分光 / 分子軌道任意性 / 電荷整列 / スピン液体 / 分子性超伝導体 / 動的組成比 / 普遍性 |
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| Outline of Final Research Achievements |
The two-dimensional molecular superconductors are classified into two groups from the viewpoint of their structures: Group A) the two-dimensional layer consists of a tightly bounded dimer, Group B) any tightly bounded dimer is not formed in the layer. It is accepted that the charge fluctuation plays an important role in the superconducting phase transition for Group B. However, the charge fluctuation has not been elucidated for Group A. The number of the molecule in the repeating unit, where charges show the fluctuation, N, has been examined by applying the vibrational spectroscopy to the β'-type [Pd(dmit)2]2 salts, non-β'-type [Pd(dmit)2]2 salts, β-type ET salts and κ-type ET salts. It is found that the superconductor shows N = 4 whereas N = 2 and 8 for the semiconductors. This result is consistent with the previous result for the Group A.
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Report
(4 results)
Research Products
(34 results)
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[Presentation] Photo-induced dynamics of Pt(dmit)2 salts studied by optical spectroscopy and electron-diffraction technique2014
Author(s)
T. Ishikawa, K. Onda, Y. Okimoto, S. Koshihara, S. Hayes, S. Keskin, G. Corthey, M. Hada, K. Pichugin, A. Marx, R. J. D. Miller, A. Moreac, W. Kaszub, M. Lorenc, T. Yamamoto, M. Nomura, and Reizo Kato
Organizer
5th International Conference on Photoinduced Phase Transitions and Cooperative Phenomena PIPT5
Place of Presentation
Bled, Slovenia
Year and Date
2014-06-08 – 2014-06-13
Related Report
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[Presentation] 時間分解電子線回折によるMe4P[Pt(dmit)2]2における光誘起構造変化ダイナミクスの直接観測2013
Author(s)
石川忠彦, 沖本洋一, 恩田健, 腰原伸也, Stuart A. Hayes, Sercan Keskin, Gaston Corthey, 羽田真毅, Kostyantyn Pichugin, Alexander Marx, R.J. Dwayne Miller, Wawrzyniec Kazub, Maciej Lorenc, 山本貴, 野村光城, 加藤礼三
Organizer
日本物理学会第69回年次大会
Place of Presentation
東海大学
Related Report
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