Vortex-glass superconductivity: A possible new phase in bulk high-Tc oxides
Matthew P. A. Fisher
DOI 10.1103/PhysRevLett.62.1415 · Physical Review Letters
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Abstract
The possibility of a new thermodynamic phase in the mixed state of bulk, disordered, type-II superconductors is suggested: a vortex-glass superconductor. This phase lacks conventional off-diagonal long-ranged order, yet is argued to be a true superconductor with vanishing dc resistance. In this phase metastable currents are predicted to decay as (lnt)−1/μ with μ(≤1) a universal exponent. Relevance to experiments on bulk high-Tc oxides is mentioned.
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