Universality of glass scaling in a YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thin film

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.14784· OSTI ID:550551

Moloni, K; Friesen, M; Li, S; Souw, V; Metcalf, P; McElfresh, M ^[1]

---

1. Physics Department, Purdue University, West Lafayette, Indiana 47907-1396 (United States)

The universal behavior of the continuous superconducting (glass) phase transition is studied in a YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thin film. An analysis technique for extracting critical exponents is developed, using current-voltage (J-E) measurements. The method places narrow limits on the glass scaling exponents, z{sub g} and {nu}{sub g}, as well as the glass-transition temperature, T{sub g}(H). The universal values z{sub g}=3.8{plus_minus}0.2 and {nu}{sub g}=1.8{plus_minus}0.1 are obtained. Using these values, the data are scaled for fields in the range 1{endash}9 T. Collapse of the scaling forms at different fields describes the universal scaling function. The field dependence of the universal collapse is interpreted in terms of the three-dimensional XY multicritical scaling theory. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 550551
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 22 Vol. 56; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL-PHASE TRANSFORMATIONS
ELECTRIC CONDUCTIVITY
HIGH-TC SUPERCONDUCTORS
SCALING LAWS
THIN FILMS
TRANSITION TEMPERATURE
YTTRIUM OXIDES