2011 Fiscal Year Final Research Report
Research of the nonlinear conduction and hidden metastable state of organic conductor beta-type DMeET salt
| Project/Area Number |
20340087
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MORI Hatsumi 東京大学, 物性研究所, 教授 (00334342)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Kazuyuki 東京大学, 物性研究所, 助教 (60342953)
MORI Takehiko 東京工業大学, 大学院・理工学研究科, 教授 (60174372)
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| Co-Investigator(Renkei-kenkyūsha) |
MORI Takehiko 東京工業大学, 大学院・理工学研究科, 教授 (60174372)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 分子性物質 / 電場応答 / 非線形伝導 / 準安定状態 |
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| Research Abstract |
The response of electric field has been investigated for the molecular conductorυ-(meso-DMeET) 2PF6, which is in the peculiar electronic state of both checkerboard-type charge ordering and dimer-Mott at low temperatures. The titled crystal shows the large nonlinear conduction and the electric-field induced metastable state. This response is quick in proportional to(electric field)^3. The measurement of raman spectroscopy synchronized to the pulsed electric field suggests the melting of the charge ordering in the metastable state with the intermediate resistivity.
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Research Products
(13 results)
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[Journal Article] Superconductivity Competitive withCheckerboard-type Charge Ordering inOrganic Conductor beta-(meso-DMBEDTTTF)_2PF_62009
Author(s)
N. Morinaka, K. Takahashi, R. Chiba, F. Yoshikane, S. Niizeki, M. Tanaka, K. Yakushi, M. Koeda, M. Hedo, T. Fujiwara, Y. Uwatoko, Y. Nishio, K. Kajita, and H. Mori, Phys
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Journal Title
Rev. B
Volume: 80
Pages: 092508(1-4)
DOI
Peer Reviewed
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[Journal Article] Ground State and Pressure-inducedSupercond Suctivity of Checkerboard-type Charge-ordered Molecular Conductorβ-(meso-DMBEDT-TTF)_2X(X=PF6 and AsF_6)
Author(s)
T. Shikama, T. Shimokawa, S. Lee, T. Isono, A. Ueda, K. Takahashi, A. Nakao, R. Kumai, H. Nakao, K. Kobayashi, Y. Murakami, M. Kimata, H. Tajima, K. Matsubayashi, Y. Uwatoko, Y. Nishio, K. Kajita, and H. Mori
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Journal Title
Crystals
Volume: (in press)
URL
Peer Reviewed
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[Presentation] 圧力誘起超伝導体.-(meso-DMBEDT-TTF)_2PF_6の構造及び伝導性、磁性"2011
Author(s)
四竃格久,高橋一志,森初果,熊井玲児,中尾朗子,中尾祐則,小林賢介,村上洋一,木俣基,田島裕之,松林和幸,上床美也,下川達也
Organizer
分子科学討論会
Place of Presentation
札幌コンベンションセンター
Year and Date
20110920-23
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