UNIVERSAL SCALING IN BCS SUPERCONDUCTIVITY IN 3 DIMENSIONS IN NON-S WAVES

Citation
A. Ghosh et Sk. Adhikari, UNIVERSAL SCALING IN BCS SUPERCONDUCTIVITY IN 3 DIMENSIONS IN NON-S WAVES, EUROPEAN PHYSICAL JOURNAL B, 2(1), 1998, pp. 31-36
Citations number
26
Categorie Soggetti
Physics, Condensed Matter
Journal title
ISSN journal
14346028
Volume
2
Issue
1
Year of publication
1998
Pages
31 - 36
Database
ISI
SICI code
1434-6028(1998)2:1<31:USIBSI>2.0.ZU;2-7
Abstract
The solutions of a renormalized BCS equation are studied in three spac e dimensions in s, p and d waves for finite-range separable potentials in the weak to medium coupling region. In the weak-coupling limit, th e present BCS model yields a small coherence length xi and a large cri tical temperature, T-c, appropriate for some high-T-c materials. The B CS gap, T-c, xi and specific heat C-s(T-c) as a function of zero-tempe rature condensation energy are found to exhibit potential-independent universal scalings. The entropy, specific heat, spin susceptibility an d penetration depth as a function of temperature exhibit universal sca ling below T-c in p and d waves.