First-order flux-lattice melting of a frustrated {ital XY} model with a [111] magnetic field

Journal Article · Sun Dec 01 00:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.14978· OSTI ID:397600

Hwang, I; Stroud, D ^[1]

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1. Department of Physics, The Ohio State University, Columbus, Ohio 43210 (United States)

We have studied a three-dimensional isotropic Josephson-junction array in a simple cubic lattice with a magnetic field {ital B}={Phi}{sub 0}(1/3,1/3,1/3), using Monte Carlo simulation. There is a clear first-order phase transition with a latent heat of melting of about 0.11{ital k}{sub {ital B}}{ital T}{sub {ital m}} per superconducting grain at a melting temperature {ital T}{sub {ital m}}{approx_equal}0.70{ital J}, where {ital J} is the intergrain coupling energy. We briefly discuss the possible relation of this transition to flux-lattice melting in high-{ital T}{sub {ital c}} superconductors. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Purdue Univ., West Lafayette, IN (United States)
• DOE Contract Number: FG02-90ER45427
• OSTI ID: 397600
• Journal Information: Physical Review, B: Condensed Matter, Vol. 54, Issue 21; Other Information: PBD: Dec 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
JOSEPHSON JUNCTIONS
PHASE TRANSFORMATIONS
CUBIC LATTICES
MAGNETIC FIELDS
MELTING
HIGH-TC SUPERCONDUCTORS
ORDER PARAMETERS
XY MODEL
FRUSTRATION
FLUX-LINE LATTICES