Second discontinuity in the specific heat of two-phase superconductors
arXiv:0704.3714 · doi:10.1016/j.physc.2007.08.001
Abstract
The recently proposed theoretical model of superconductors endowed with two distinct superconducting phases and critical temperatures is further analyzed by introducing two distinct order parameters, described by two scalar fields which condensate at different temperatures. We find some deviations in basic thermodynamical quantities with respect to the Ginzburg-Landau one-phase superconductors. In particular, by contrast to the usual case where only one jump in specific heat takes place at the normal-superconductor transition temperature, we actually predict an additional discontinuity for C_V when passing from a superconducting phase to the other one.
arXiv commentrevtex, 4 pages, 1 figure
References in corpus (8)
- Specific Heat of Mg ^{11}B_2
- Phenomenological two-gap model for the specific heat of MgB_2
- Critical fluctuations in superconductors and the magnetic field penetration depth
- Superconducting Double Transition and the Upper Critical Field Limit of Sr2RuO4 in Parallel Magnetic Fields
- Critical Exponents of the Superconducting Phase Transition
- Vortex Origin of Tricritical Point in Ginzburg-Landau Theory
- Superconductors with two critical temperatures
- Magnetic properties of two-phase superconductors