Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/100811
Type: Artigo de periódico
Title: Nonlocal In-plane Resistance In High-tc Superconducting Films In The Vicinity Of A Kosterlitz-thouless-type Transition
Author: Kopelevich Y.
Ciovacco F.
Esquinazi P.
Braun H.F.
Abstract: We have measured the nonlocal in-plane resistance in high-Tc superconducting YBa2Cu3O7-d films. The results obtained in zero magnetic field show a negative nonlocal resistance in the vicinity of the Kosterlitz-Thouless-type vortex-antivortex unbinding transition, as it was predicted recently by Wortis and Huse [Phys. Rev. B 54, 12413 (1996)]. We also found that the negative nonlocal resistance takes place within a certain domain of the current-temperature diagram. Our findings indicate that nonlocal measurements in "planar" geometry can be a new method to study vortex dynamics in superconductors.
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Rights: fechado
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0032049335&partnerID=40&md5=5e174b18461b6229ddd66d6aee5e1346
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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