Artículos de revistas
Universal scaling in BCS superconductivity in three dimensions in non-s waves
Fecha
1998-12-01Registro en:
European Physical Journal B, v. 2, n. 1, p. 31-36, 1998.
1434-6028
10.1007/s100510050222
WOS:000073620600005
2-s2.0-0031673535
8031087349809439
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The solutions of a renormalized BCS equation are studied in three space dimensions in s, p and d waves for finite-range separable potentials in the weak to medium coupling region. In the weak-coupling limit, the present BCS model yields a small coherence length ξ and a large critical temperature, T c, appropriate for some high-T c materials. The BCS gap, T c, ξ and specific heat C s(T c) as a function of zero-temperature condensation energy are found to exhibit potential-independent universal scalings. The entropy, specific heat, spin susceptibility and penetration depth as a function of temperature exhibit universal scaling below T c in p and d waves.