Fractional Vortices as Evidence of Time-Reversal Symmetry Breaking in High-Temperature Superconductors
arXiv:cond-mat/9407087 · doi:10.1103/PhysRevLett.74.3249
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