Phase diagram of superconductors from nonperturbative flow equations
B. Bergerhoff, F. Freire, D. F. Litim, S. Lola, C. Wetterich
DOI 10.1103/PhysRevB.53.5734 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The universal behavior of superconductors near the phase transition is described by the three-dimensional field theory of scalar quantum electrodynamics. We approximately solve the model with the help of nonperturbative flow equations. A first- or second-order phase transition is found depending on the relative strength of the scalar versus the gauge coupling. The region of a second-order phase transition is governed by a fixed point of the flow equations with associated critical exponents. We also give an approximate description of the tricritical behavior and briefly discuss the crossover relevant for the onset of scaling near the critical temperature. Final confirmation of a second-order transition for strong type-II superconductors requires further analysis with extended truncations of the flow equations. © 1996 The American Physical Society.
Similar papers
The Nature of the Superconducting phase Transitions in Strongly type-II Superconductors in the Pauli Paramagnetic limit
similarity 0.88T. Maniv & V. Zhuravlev · 2007 · arXiv:0712.3981
Source status unknown — claims are unverified
Phase Diagram of Superconductors from Non-Perturbative Flow Equations
similarity 0.88B. Bergerhoff et al. · 1995 · arXiv:hep-ph/9503334
Source status unknown — claims are unverified
Thermodynamics and excitation spectrum of a quasi-one-dimensional superconductor in a high magnetic field
similarity 0.88N. Dupuis
Source status unknown — claims are unverified
Metal-Superconductor Transition at Zero Temperature: A Case of Unusual Scaling
similarity 0.88T. R. Kirkpatrick & D. Belitz
Source status unknown — claims are unverified
Superconductivity phase diagram in the gauge-field description of the t-J model
similarity 0.87Menke U. Ubbens & Patrick A. Lee
Source status unknown — claims are unverified
Universal Phase Diagram for Vortex States of Layered Superconductors in Strong Magnetic Fields
similarity 0.87Jun Hu & A. H. MacDonald · 1997 · arXiv:cond-mat/9703046
Source status unknown — claims are unverified