Specific heat in the mixed state of non-magnetic borocarbides

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作者：
机构：
[1] Lipp, D.
[2] Drechsler, S.-L.
[3] Freudenberger, J.
[4] Fuchs, G.
[5] Nenkov, K.
[6] Müller, K.-H.
[7] Schneider, M.
[8] Gladun, A.
来源：
Drechsler, S.-L. (drechsler@ifw-dresden.de) | 1600年 / Elsevier期
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Theoretical; (THR);
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摘要：
The temperature and magnetic field dependence of the specific heat cp(T,H) in the superconducting mixed state has been measured for polycrystalline YxLu1-xNi2B2C and Y(Ni1-yPty)2B2C samples. The deviations from the usual linear-in-H law of the linear-in-T electronic specific heat contribution γ(H)T can be possibly ascribed to unconventional pairing. The γ(H) dependence is discussed in the unitary d-wave scenario as well as in the intermediate transition region in between dirty and clean s-wave limits. From a consideration of γ(H) data, unconventional pairing cannot be ruled out. © 2002 Published by Elsevier Science B.V.
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页码：388 / 389
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