| Project/Area Number |
24740226
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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 |
Condensed matter physics II
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| Research Institution | Niigata University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | 圧力誘起超伝導 / 異方的近藤 / 磁気抵抗効果 / 超伝導 / 圧力 / 国際情報交換 |
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| Research Abstract |
In this study, the transport properties of single crystals of CePtSi2 and its relative materials under pressure and in magnetic fields were measured to reveal the origin of the pressure-induced superconductivity, large magnetoresitance, and anisotropic Kondo scattering in CePtSi2. The main results are shown below. (1) The transport properties under pressure for each crystal axis indicated that the pressure-induced superconductivity in CePtSi2 is mediated by the influence of valence fluctuation.(2) The magnetoresistance effect is large for c-axis, but very small for b-axis. This suggests that the anisotropic magnetoresistance and Kondo scattering have the same origin.
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