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

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. In the presence of point defects, the existence of a critical endpoint of the first-order melting line at high magnetic fields, which has been recently observed experimentally, is explained. (c) 2000 The American Physical Society.

Authors:
 [1];  [1]
  1. Argonne National Laboratory, Materials Science Division, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
20216781
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 22; Other Information: PBD: 1 Jun 2000; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; MELTING; DISLOCATIONS; CRYSTAL-PHASE TRANSFORMATIONS; VORTICES; GLASS; MAGNETIC FIELDS; HIGH-TC SUPERCONDUCTORS; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; FREE ENERGY; POINT DEFECTS; THEORETICAL DATA

Citation Formats

Kierfeld, Jan, and Vinokur, Valerii. Dislocations and the critical endpoint of the melting line of vortex line lattices. United States: N. p., 2000. Web. doi:10.1103/PhysRevB.61.R14928.
Kierfeld, Jan, & Vinokur, Valerii. Dislocations and the critical endpoint of the melting line of vortex line lattices. United States. doi:10.1103/PhysRevB.61.R14928.
Kierfeld, Jan, and Vinokur, Valerii. Thu . "Dislocations and the critical endpoint of the melting line of vortex line lattices". United States. doi:10.1103/PhysRevB.61.R14928.
@article{osti_20216781,
title = {Dislocations and the critical endpoint of the melting line of vortex line lattices},
author = {Kierfeld, Jan and Vinokur, Valerii},
abstractNote = {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. In the presence of point defects, the existence of a critical endpoint of the first-order melting line at high magnetic fields, which has been recently observed experimentally, is explained. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevB.61.R14928},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 22,
volume = 61,
place = {United States},
year = {2000},
month = {6}
}