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Unconventional superconductivity in UBe13 probed by uniaxial stress

机译:单轴应力在UBe13中的非常规超导性

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In order to examine the nature of the superconducting order parameter in UBe13, we measured the specific heat, C, as a function of temperature, T, under uniaxial stress along <100> axis, for both "L"-(T-c approximate to 0.75 K) and "H"-type (0.85less than or equal toT(c)less than or equal to 0.95 K) crystals. With increasing pressure, a linear decrease of the superconducting transition temperature, T-c, was observed (partial derivativeT(c)/partial derivativepsimilar or equal to8.5mK/GPa for "L"-type and partial derivativeT(c)/partial derivativepsimilar or equal to50mK/GPa for "H"-type) but no split of the transition could be resolved unambiguously for either of the two samples within our measurement resolution. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 10]
机译:为了检查UBe13中超导阶数参数的性质,我们测量了沿<100>轴的单轴应力下“ L”-(Tc均约为0.75)的比热C作为温度T的函数。 K)和“ H”型(0.85小于或等于T(c)小于或等于0.95 K)晶体。随着压力的增加,观察到超导转变温度Tc线性降低(“ L”型偏导数T(c)/偏导数等于或等于8.5mK / GPa,而偏导数T(c)/偏导数相似或等于到“ H”型为50mK / GPa),但在我们的测量分辨率范围内,对于两个样品中的任何一个样品,都不能明确解决过渡的拆分问题。 (C)2002 Elsevier Science B.V.保留所有权利。 [参考:10]

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