Monte Carlo simulation of flux lattice melting in a model high- T sub c superconductor

Journal Article · Mon Feb 03 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.710· OSTI ID:5076333

Ryu, S; Doniach, S; Deutscher, G; Kapitulnik, A ^[1]

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1. Department of Applied Physics, Stanford University, Stanford, California 94305 (United States) School of Physics and Astronomy, Tel Aviv University, Ramat-Aviv 69978 (Israel)

We studied flux lattice melting in a model high-{ital T}{sub {ital c}} superconductor by Monte Carlo simulation in terms of vortex variables. We identify two melting curves in the {ital B}-{ital T} phase diagram and evaluate a density-dependent Lindemann criterion number for melting. We also observe that the transition temperature shifts downward toward the two-dimensional melting limit as the density of flux lines increases. Although the transition temperature does not change, a significant difference in shear modulus is observed when flux cutting or reconnection is allowed.

• OSTI ID: 5076333
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:5; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
DIAGRAMS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
MECHANICAL PROPERTIES
MELTING
MONTE CARLO METHOD
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SHEAR PROPERTIES
SIMULATION
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
VORTICES