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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 | Abstract: | 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 $xi$ 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 | Services: | Forum | Review | PDF | Favorites |
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