Determination of the energy gap of superconducting Chevrel and A15 compounds from heat capacity measurements
Determination of the energy gap of superconducting Chevrel and A15 compounds from heat capacity measurements
复制标题
通过热容测量确定超导 Chevrel 和 A15 化合物的能隙
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
B. Pietrass
中科院分区：
文献类型：
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作者：
C. Hohlfeld;B. Pietrass
在低温下测量了许多Chevrel化合物和A15化合物Nb3Sn、Nb3Al和V3Ge的热容，并将其分解为电子和晶格部分。从电子部分确定了零温热力学临界场Hc（0）和能隙Δ。采用强耦合超导体理论计算了理论能隙值。理论值和实验值之间的一个令人满意的协议。
The heat capacities of numerous Chevrel compounds and of the A15 compounds Nb3Sn, Nb3Al, and V3Ge were measured at low temperatures and decomposed into electronic, and lattice parts. The zero-temperature thermodynamic critical fieldHc(0) and energy gap Δ were determined from the electronic part. Theoretical energy gap values were calculated, employing the theory of strong coupling superconductors. A satisfactory agreement between theoretical and experimental values is obtained.