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

M. Fogelstrom·S. -K. Yip
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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.

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M. Fogelstrom, S. -K. Yip. 1998-03-03. Time Reversal Symmetry Breaking States Near Grain Boundaries Between d-wave Superconductors. https://doi.org/10.1103/physrevb.57.r14060

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