Robust critical behavior in YBa{sub 2}Cu{sub 3}O{sub 7} thin films
- Physics Department, Purdue University, West Lafayette, Indiana 47907-1396 (United States)
The nature of the vortex glass phase transition in thin film YBa{sub 2}Cu{sub 3}O{sub 7} is investigated by means of a scaling analysis of the {ital I}-{ital V} characteristics near {ital T}{sub {ital g}}{approx_equal}70 K, in an applied field of 50 kOe. Exponents are found with {nu}{approx_equal}1.7 and {ital z}{approx_equal}5.0. By performing the analysis on temperature windows of varying widths about {ital T}{sub {ital g}}, it is possible to determine whether scaling exponents and functions are consistent at different distances from {ital T}{sub {ital g}}. In this way, scaling is found to be robust over a range of at least 17 K, in contrast to some recent analyses. No crossover to vortex glass Gaussian behavior is apparent throughout this range, or beyond it. {copyright} {ital 1996 The American Physical Society.}
- Research Organization:
- Purdue Research Foundation
- DOE Contract Number:
- FG02-90ER45427
- OSTI ID:
- 286684
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 5 Vol. 54; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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