Topological Order in the Vortex Glass Phase of High-Temperature Superconductors
Abstract
The stability of a vortex glass phase with quasi-long-range positional order is examined for a disordered layered superconductor. The role of topological defects is investigated using a detailed scaling argument, supplemented by a variational calculation. The results indicate that topological order is preserved for a wide range of parameters in the vortex glass phase. The extent of the stability regime is given in terms of a simple Lindemann-like criterion.
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