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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Transverse voltage in superconductors at zero applied magnetic field

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Author(s):
da Luz, M. S. [1] ; dos Santos, C. A. M. [1] ; Shigue, C. Y. [1] ; de Carvalho, Jr., F. J. H. [1] ; Machado, A. J. S. [1]
Total Authors: 5
Affiliation:
[1] USP, Escola Engn Lorena, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS; v. 469, n. 1, p. 60-63, JAN 1 2009.
Web of Science Citations: 2
Abstract

A systematic study of the transverse voltage at zero magnetic field in the superconducting state is reported. The effects of warming rate, temperature. applied magnetic field, and electrical current on the transversal resistance (R(XY)) of polycrystalline superconducting sample are taken into account. At zero magnetic field two peaks are observed in R(XY)(T) curves which are related to the double superconducting transition in the R(XX)(T) component. In the superconducting (R(XX) = zero) and normal states no transverse voltage has been detected at zero magnetic field as expected. The results are discussed within the framework of the motion of Abrikosov and Josephson vortices and anti-vortices. A new scaling relation between transverse and longitudinal components given by R(XY) similar to dR(XX)/dT has been confirmed. (C) 2008 Elsevier B.V. All rights reserved. (AU)