2024-03-29T13:55:09Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02007011
2022-10-31T03:13:15Z
1642837622505:1642837994858:1642838003490
1642838403551:1642838406414
On the Effect of Impurity Correleation on Superconductivity
Tankei, Katsuichi
丹慶, 勝市
The effect of correlated impurity spins on superconductivity is investigated by extending the Gor'kov and Rusinov theory and taking account of the effective internal field acting on each localized spins. .The superconducting transition temperature T_c is calculated by using a simpler approximation than Bennemann's, and it is found that a co= existence of superconductivity and impurity ferromagnetism is easily obtainable even if the spin-orbit interaction is weak. The dependence of the critical concentration on the effective internal field and the spin-orbit interaction is also examined. It is concluded that T_c cannot be higher than in the Abtikosov and Gor'kov theory, except in the case when the spin-orbit interaction is sufficiently weak and the s-d exchange coupling constant is considerably large in magnitude.
紀要論文
http://purl.org/coar/resource_type/c_6501
琉球大学理工学部
Science and Engineering Division, University of the Ryukyus
1979-03
NA
http://hdl.handle.net/20.500.12000/23674
AN0025080X
琉球大学理工学部紀要. 理学編
Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences
27
56
39
eng
open access