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Dislocations and the critical endpoint of the melting line of vortex line lattices

J. Kierfeld·V. Vinokur
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Abstract

We develop a theory for dislocation-mediated structural transitions in the vortex lattice which allows for a unified description of phase transitions between the three phases, the elastic vortex glass, the amorphous vortex glass, and the vortex liquid, in terms of a free energy functional for the dislocation density. The origin of a critical endpoint of the melting line at high magnetic fields, which has been recently observed experimentally, is explained.

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J. Kierfeld, V. Vinokur. 1999-09-13. Dislocations and the critical endpoint of the melting line of vortex line lattices. https://doi.org/10.1103/physrevb.61.r14928

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