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Diminishing sign anomaly and scaling behavior of the mixed-state Hall resistivity in Tl2Ba2Ca2Cu3O10 films containing columnar defectsThe issues of sign reversal of the Hall voltage and scaling between longitudinal (rho(xx)) and Hall (rho(xy)) resistivities are studied in Tl2Ba2Ca2Cu3O10 films in which the vortex dynamics is drastically changed by flux pinning at heavy-ion-irradiation-induced linear defects. While the sign anomaly diminishes with increasing defect concentration, the power law rho(xy) is approximately equal to rho(xx) exp beta, beta = 1.85 +/- 0.1, holds even after irradiation. This result shows that the scaling is a universal feature of the mixed state in this system. The sign anomaly, on the other hand, is not consistent with a model that invokes pinning-induced backflow in the vortex core as the mechanism for this effect.
Document ID
19930069696
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Budhani, R. C.
(Brookhaven National Lab. Upton, NY, United States)
Liou, S. H.
(Nebraska Univ. Lincoln, United States)
Cai, Z. X.
(Brookhaven National Lab. Upton, NY, United States)
Date Acquired
August 16, 2013
Publication Date
July 26, 1993
Publication Information
Publication: Physical Review Letters
Volume: 71
Issue: 4
ISSN: 0031-9007
Subject Category
Solid-State Physics
Accession Number
93A53693
Funding Number(s)
CONTRACT_GRANT: NAG3-886
CONTRACT_GRANT: DE-AC02-76CH-00016
Distribution Limits
Public
Copyright
Other

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