๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

On the critical temperature of two-band superconductors with paramagnetic impurities

โœ Scribed by P. Entel; D. Rainer

Publisher
Springer US
Year
1976
Tongue
English
Weight
283 KB
Volume
23
Category
Article
ISSN
0022-2291

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โœฆ Synopsis

The influence of unpolarized and uncorrelated magnetic impurities on the critical temperature T c of a two-band superconductor which has recently been discussed by Will and Brusberg and by Entel et al. is reinvestigated. It is found that all effects of unequal cutoff frequencies co O (i, j = 1, 2)for the pairing interactions Pij can be absorbed into weakly impurity-dependent effective interaction parameters fii,, and that, in contrast to Will and Brusberg, in the dilute limit Tc(c ) always ~ecreases with increasing impurity concentration c. Consequently there is no critical concentration at which the phase transition may change from second to first order.

๐Ÿ“œ SIMILAR VOLUMES

Critical temperature of two-band superco
Critical temperature of two-band superconductors with paramagnetic impurities
โœ P. Will; M. Brusberg ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› Springer US ๐ŸŒ English โš– 467 KB

The two-band model proposed by Suhl, Matthias, and Walker for pure transition metal superconductors is extended to transition metals with paramagnetic impurities under the assumption that the cutoff parameters oij (i, j = s, d) of the pairing interactions between electrons Vii are different from eac

Transition temperature of two-band super
Transition temperature of two-band superconductors with Anderson impurities
โœ S. Yoksan ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Springer US ๐ŸŒ English โš– 377 KB

The influence of impurities on the superconducting transition temperature of two-band superconductors containing Anderson impurities is investigated. It is found that the concentration-dependent transition temperature shows typical departures from the formula for a single-band superconductor. These