Universal scaling in BCS superconductivity in two dimensions in non-s waves

Details Universal scaling in BCS superconductivity in two dimensions in non-s waves Universal scaling in BCS superconductivity in two dimensions in non-s waves

1997-10-22

arxiv.org/abs/cond-mat/9710240v1

J. Phys.: Cond. Mat., 10 (1998) 135

Physics

Condensed Matter

Superconductivity

11 pages, LATEX, 4 postscript figures embedded using epsf

Scientific paper

10.1088/0953-8984/10/1/015

The solutions of a renormalized BCS model are studied in two space dimensions in $s$, $p$ and $d$ waves for finite-range separable potentials. The gap parameter, the critical temperature $T_c$, the coherence length $\xi$ and the jump in specific heat at $T_c$ as a function of zero-temperature condensation energy exhibit universal scalings. In the weak-coupling limit, the present model yields a small $\xi$ and large $T_c$ appropriate to those for high-$T_c$ cuprates. The specific heat, penetration depth and thermal conductivity as a function of temperature show universal scaling in $p$ and $d$ waves.

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