高温超导隧道电流及旋光效应与混合配对态

THE TUNNELING CURRENT AND THE DICHROMATIC EFFECT IN RELATION TO THE MIXED PAIRING SYMMETRY STATE IN HIGH TEMPERATURE SUPERCONDUCTORS

给出了ｓ＋ｉｄ波混合配对态前提下，有关ＹＢａ２Ｃｕ３Ｏ７Ｊｏｓｅｐｈｓｏｎ隧道实验现象的分析支持了这类混合配对态提法的合理性．结合对超导体旋光现象的分析，显示了Γ１＋Γ４表象的可取性．对分数磁通的存在性问题也展开了讨论．

Abstract We present descriptions of the pairing symmetry in high temperature superconductors.Analysis of the Josephson tunneling experiments based on the asymptotic s ±i d state has, to some extend,demonstrated the validity of the model,and the comparison of the theoretical calculations with the dichromatic observations in this kind of material has been in favor of the Γ 1+Γ 4 representation argument. The possible appearance of the fractional quantum flux vortex related to the specific mixed pairing symmetry has also been discussed.