The Thermal Conductivity of Superconducting Tin below 1°K
The Thermal Conductivity of Superconducting Tin below 1°K
复制标题
1°K以下超导锡的导热系数
DOI：
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发表时间：
1953
期刊：
影响因子：
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通讯作者：
B. B. Goodman
中科院分区：
文献类型：
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作者：
B. B. Goodman
本文叙述了用沿着连接两片顺磁盐片的锡棒观察热的传导，测量1 ° K以下超导锡的热导率。对纯度差异很大的样品进行了测量，并对几个样品的结果进行了比较，从而可以估计出电子和晶格对每个样品电导率的单独贡献。电子对热导率的贡献与Heisenberg和Koppe的计算结果一致。讨论了这一点的意义，并初步提出，超导态的热力学性质可能是由电子可利用的能级谱中的KTc阶能隙决定的。
An account is given of measurements on the thermal conductivity of superconducting tin below 1 °K, made by observing the conduction of heat along a tin rod joining two pills of paramagnetic salt. Measurements were made on specimens of widely differing purities and a comparison of the results for the several specimens enabled an estimate to be made of the separate contributions, from the electrons and from the lattice, to the conductivity of each specimen. The electronic contribution to the thermal conductivity is in agreement with calculations due to Heisenberg and Koppe. The significance of this is discussed and it is tentatively suggested that the thermodynamic properties of the superconducting state may be determined by an energy gap of order KTc in the spectrum of energy levels available to the electrons.