2014 Fiscal Year Final Research Report
New electronic states of layered organic superconductors including a polar molecule in insulating layers
| Project/Area Number |
24540364
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 有機超伝導体 / 2次元電子系 / フェルミ面 / 電荷秩序 |
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| Outline of Final Research Achievements |
Magnetoresistance measurements show that the organic superconductor k_H_(DMEDO-TSeF)_2_[Au(CN)_4_](THF) has weak interlayer interaction, i.e., an incoherent electronic system. This is due to the arrangement of the polar molecule THF. The Fermi surface of the organic superconductor ka'2-(BEDT-TTF)_2_Ag(CF_3_)_4_(TCE) composed of the superconducting and the charge ordered layers has been observed. The organic superconductor (BEDT-TTF)_2_Cu(CF_3_)_4_(TCE) has two phases, high-Tc and low-Tc phases. The crystal structure of the high-Tc phase has been unknown since 1994. The crystal structure is clarified by the x-ray diffraction measurements.
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| Free Research Field |
有機超伝導体
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