標題: Low-temperature specific heat of superconductors - I. Historical perspective prior to 1986
作者: Ho, J. C.
Lin, J. G.
Lin, J. Y.
Yang, H. D.
交大名義發表
物理研究所
National Chiao Tung University
Institute of Physics
關鍵字: Low temperature;Specific heat;Superconductors;1911 to 1986
公開日期: 1-十月-2019
摘要: Specific heat is a fundamental thermodynamic quantity closely related to internal energy and entropy of a system. In superconductivity research, it has been playing important roles ever since the intriguing critical phenomenon was discovered. Looking back, though, calorimetric measurements, along with the relevant low-temperature techniques, improved slowly over decades. Erroneous conclusions were reached often in the beginning, but eventually several calorimetrically-derived key features formed part of the basis in the microscopic BCS theory and its extended versions. While unable to predict whether or when a given material would become superconducting, theories helped data analysis and guided new superconductors search. Many elements, alloys and compounds joined the long list of known superconductors over the 75-year period between 1911 and 1986. Specific heat data yielded characteristic parameters, and ascertained whether an observed transition was a bulk effect. In the later years, theoretical models or experimental results also revealed a few classes of unconventional superconductors, mostly involving the interplay between superconductivity and magnetism. This article is purposely focused, as historical perspective, on how such activities progressed. Only initial findings and some related reports are cited, leaving out much more detailed and better executed work published later. For the same reason, only select figures and discussions of cited articles, but not their full extent, are included.
URI: http://dx.doi.org/10.1016/j.cjph.2019.07.008
http://hdl.handle.net/11536/153173
ISSN: 0577-9073
DOI: 10.1016/j.cjph.2019.07.008
期刊: CHINESE JOURNAL OF PHYSICS
Volume: 61
起始頁: 113
結束頁: 137
顯示於類別:期刊論文