Original scientific paper
Effect of magnetic impurity in two-band model of superconductor
B. J. Choudhury
; Baranas Hindu University, Varanasi, India
Abstract
Perturbation theory is used to determine the change in transition temperature of a two-band superconductor due to the presence of magnetic impurity. Localized exchange interaction between the impurity spin and electron is considered. This interaction can lead to both inter-band and intra-band scattering. We find that the d-band transition temperature decreases more than the s-band transition temperature due to the addition of impurity. This distinction arises because the d-band gap is larger than the s-band gap.
Keywords
Hrčak ID:
321983
URI
Publication date:
6.8.1973.
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