Time Reversal Symmetry Breaking States Near Grain Boundaries Between d-wave Superconductors

Abstract

In this paper we study the order parameter and density of states near a grain boundary between two $d_{x^2-y^2}$ superconductors. We examine broken time reversal symmetry near the interface. In particular we show that, under suitable circumstances, time reversal symmetry must be broken even when the order parameter is purely $d_{x^2-y^2}$ everywhere in space.

4 pages, RevTeX, 4 postscript figures

References in corpus (1)

• Pinhole junctions in d-wave superconductors

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