| Project/Area Number |
62540230
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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 |
固体物性
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| Research Institution | Kanazawa University (1989)
Iwate University (1987-1988) |
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Principal Investigator |
TSUTSUMI Kitomi Kanazawa University, Department of Physics, Associated Professor, 理学部, 助教授 (20143323)
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| Project Period (FY) |
1987 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1989: ¥100,000 (Direct Cost: ¥100,000)
Fiscal Year 1988: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1987: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Transition-metal chalcognide / Charge-density wave / Superconductivity / Mon-ohmic conduction / オ-ムの法則に従わない電気伝導 / 非線形電気伝導 / スイッチッグ現象 / スライディング運動 / 間欠的雑音 / Ko._<30>MoO_3 / スイッチング現象 / オームの法則に従わない電気伝導 |
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| Research Abstract |
I have investigated the superconductivity transition in a layered transition-metal dichalcogenide 2H-Tas_2 by means of measuring electrical resistance down to 10 mK. We observed one which is highly sensitive to the current for the measurement of the electrical resistance. In addition the current-dependent- electrical resistance is clearly observed at 1.4 and 4.2 K respectively. This current-dependency is for the first time reported on this material. The physical origin is discussed in terms of the distribution of the superconductivity transition temperature within the specimen.
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