Parity breaking and phase transition induced by a magnetic field in high $T_c$ superconductors

Details Parity breaking and phase transition induced by a magnetic field in high $T_c$ superconductors Parity breaking and phase transition induced by a magnetic field in high $T_c$ superconductors

1998-08-12

arxiv.org/abs/cond-mat/9808134v3

Nucl.Phys. B556 (1999) 563-572

Physics

Condensed Matter

Superconductivity

Latex 17 pages, 2 figures, added discussions on parity breaking, final version to appear in Nuc. Phys. B

Scientific paper

10.1016/S0550-3213(99)00309-0

We suggest that the 2+1 dimensional Gross-Neveu model can give an effective field theory description of low-energy quasiparticles in high temperature superconductors. The magnetic catalysis of dynamical symmetry breaking is examined. The model shows that a magnetic field can induce a phase transition associated with parity breaking. In particular, it is intended to give an explanation of a second phase transition observed in a recent experiment by Krishana et al.

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