Three-dimensional {ital XY} scaling of the resistivity of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystals

Journal Article · Mon May 01 00:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.51.11984· OSTI ID:44561

Howson, M A; Overend, N; Lawrie, I D ^[1]; Salamon, M B ^[2]

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1. Department of Physics, University of Leeds, Leeds LS29JT (United Kingdom)
2. Department of Physics and Materials Research Laboratory, University of Illinois, West Green Street, Urbana, Illinois 61801 (United States)

The electrical resistivity of a single-crystal sample of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} has been measured. The results are consistent with the existence of a critical regime governed by three-dimensional {ital XY} critical exponents. Evidence is also found for the divergence of the conductivity along a line {ital H}{sub {ital g}}({ital T}){proportional_to}(1{minus}{ital T}/{ital T}{sub {ital c}}){sup 2{nu}}, the vortex glass transition line. The vortex glass exponents characteristic of this line are {ital z}{sub {ital g}}({nu}{sub {ital g}}{minus}1){approx}5{plus_minus}1. The results are not consistent with the lowest Landau-level scaling.

• OSTI ID: 44561
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 17 Vol. 51; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARIUM OXIDES
COPPER OXIDES
CRYSTAL MODELS
ELECTRIC CONDUCTIVITY
HIGH-TC SUPERCONDUCTORS
MIXED STATE
MONOCRYSTALS
SCALING LAWS
TEMPERATURE DEPENDENCE
YTTRIUM OXIDES