Phase transitions in high-T{sub c} superconductors and the anisotropic three-dimensional XY model

Journal Article · Thu May 01 00:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.55.11766· OSTI ID:496745

Chen, T; Teitel, S ^[1]

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1. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States)

We carry out simulations of the anisotropic uniformly frustrated three-dimensional XY model, as a model for vortex line fluctuations in high-T{sub c} superconductors. We compute the phase diagram as a function of temperature and anisotropy, for a fixed applied magnetic field B. We find that superconducting coherence parallel to B persists into the vortex line liquid state, vanishing at a T{sub cz} above the melting T{sub m}. Both T{sub cz} and T{sub m} are found in general to lie well below the crossover T{sub c2} from the vortex line liquid to the normal state. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: University of Rochester
• DOE Contract Number: FG02-89ER14017
• OSTI ID: 496745
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 55; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FLUX
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PHASE TRANSFORMATIONS
THREE-DIMENSIONAL CALCULATIONS