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29 March 2024
 
  » arxiv » cond-mat/9709340

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Universal scaling in BCS superconductivity in three dimensions in non-$s$ waves
Angsula Ghosh ; Sadhan K. Adhikari ;
Date 30 Sep 1997
Journal Eur. Phys. J. B, 2 (1998) 31
Subject Superconductivity | cond-mat.supr-con
AbstractThe 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 $xi$ and a large critical temperature, $T_c$, appropriate for some high-$T_c$ materials. The BCS gap, $T_c$, $xi$ 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.
Source arXiv, cond-mat/9709340
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