Vortex-glass transition in three dimensions

Journal Article · Tue Oct 01 04:00:00 EDT 1991 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.44.7147· OSTI ID:5243085

Reger, J D ^[1]; Tokuyasu, T A ^[2]; Young, A P ^[3]; Fisher, M P.A. ^[2]

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1. Institut fuer Physik, Universitaet Mainz, D-6500 Mainz (Germany)
2. IBM Thomas J. Watson Research Center, Yorktown Heights, New York (USA)
3. Laboratoire de Physique Statistique, Ecole Normale Superieure, Paris 75231 CEDEX 05 (France)

We investigate the possibility of a vortex-glass transition in a disordered type-II superconductor in a magnetic field in three dimensions by numerical studies of a simplified model. Monte Carlo simulations at finite temperature and domain-wall renormalization-group calculations at {ital T}=0 indicate that {ital d}=3 is just above the lower critical dimension {ital d}{sub {ital l}}, though the possibility that {ital d}{sub {ital l}}=3 cannot be definitely ruled out. A comparison is made with {ital XY} and Ising spin glasses. The (effective) correlation-length exponent {nu} and dynamical exponent {ital z} are in fairly good agreement with experiment.

• OSTI ID: 5243085
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 44:13; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL MODELS
FLUCTUATIONS
ISING MODEL
MAGNETIC FLUX
MATHEMATICAL MODELS
MONTE CARLO METHOD
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
PHASE TRANSFORMATIONS
SPIN GLASS STATE
SUPERCONDUCTORS
THREE-DIMENSIONAL CALCULATIONS
TYPE-II SUPERCONDUCTORS
VARIATIONS