| Project/Area Number |
04640370
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
物性一般（含極低温･固体物性に対する理論）
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| Research Institution | Okayama University |
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Principal Investigator |
MACHIDA Kazushige Okayama University Physics Associate Professor, 理学部, 助教授 (50025491)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1992: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | Organic conductor / Field-induced spin density wave / Quantized Hall effect / Heavy Fermion system / Superconductivity / Vortex structure / 有機物質 / 磁場誘起相転移 / Цpt_3 |
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| Research Abstract |
We have investigated the following two thema : The first concerns the field-induced spin density wave (FISDW) transition in organic conductors. We have found that FISDW is characterized by coexistence of many prder parameters. This identification allows us to understand various mysteries associated ; namely the cascade transitions and the sign reversal of the quantized Hall conductance.
The second concerns the identification of the superconducting pairing funct function in a heavy electron system UPt3. We have found that the state belonging to a one-dimensional representation with odd parity is best fit to the existing experiments. We propose on this identification various experiments to check our theory, including the phase diagram and vortex structures.
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