Fractional Vortices as Evidence of Time-Reversal Symmetry Breaking in High-Temperature Superconductors

Abstract

We argue that recent experiments by Kirtley et al. may show evidence of time reversal symmetry breaking in YBCO at crystal grain boundaries. We illustrate this through a Ginzburg-Landau model calculation. Further experimental tests are proposed.

10 pages, REVTeX 3.0

References in corpus (1)

• On the Josephson Coupling between a disk of one superconductor and a surrounding superconducting film of a different symmetry

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