Interference between superconductivity and martensitic transition in A15 compounds
作者： Naoki Toyota , Tsukasa Kobayashi , Mitsuo Kataoka , Hirohide F. J. Watanabe , Tetsuo Fukase
DOI: 10.1143/JPSJ.57.3089
关键词:
摘要: An interference effect between the high- T c superconductivity and martensitic transition in A15 compounds such as V 3 Si Nb Sn has been studied. It is found from measurements of sound velocity, attenuation, thermal dilation electrical resistance, that an occurrence interferes drastically with developing tetragonal distortions caused by transformation, but these only weakly affected presence transition. This unilateral qualitatively consistent second-order band Jahn-Teller mechanism which means Fermi level crossing upper split doubly degenerate \(\varGamma_{12}\) subbands. Discussions on are given basis surface
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