Broken time reversal symmetry vestigial state for a two-component superconductor in two spatial dimensions
P. T. How, S. K. Yip
DOI 10.1103/PhysRevB.110.054519 · Physical Review B
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Abstract
We consider the vestigial phase with broken time reversal symmetry above the superconducting transition temperature of a two-component superconductor in two spatial dimensions. We show that, in contrast to three dimensions, a vestigial phase is in general allowed within Ginzburg-Landau theory. The vestigial phase occupies an increasing temperature region if the parameters in the Ginzburg-Landau theory give a larger energy difference between the broken time reversal symmetry phase and the other ordered phase.
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