RT Journal Article
T1 Zero-magnetic-field dynamic scaling in Bi_(2)Sr_(2)CaCu_(2)O_(8) thin films
A1 Sefrioui, Zouhair
A1 Arias Serna, Diego
A1 León Yebra, Carlos
A1 Santamaría Sánchez-Barriga, Jacobo
A1 González Herrera, Elvira María
A1 Vicent López, José Luis
A1 Prieto, P.
AB We investigate the zero-magnetic-field dynamic scaling in Bi_(2)Sr_(2)CaCu_(2)O_(8) thin films from nonlinear currentvoltage sI-Vd characteristics and by using the concavity criterion recently proposed by Strachan et al. [Phys. Rev. Lett. 87, 067007 (2001)]. We find that fresh samples show a BKT-like transition with z=0.8, smaller than expected for a conventional Berezinskii-Kosterlitz-Thouless transition. The effect of sample size and finite Josephson coupling are discussed. We examine the effect of thermally-induced disorder in the oxygen sublattice finding that the BKT-like transition is suppressed by point disorder.
PB American Physical Society
SN 1098-0121
YR 2004
FD 2004-08-09
LK https://hdl.handle.net/20.500.14352/51425
UL https://hdl.handle.net/20.500.14352/51425
LA eng
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NO © 2004 The American Physical Society. This work was supported by MCYT MAT 2002-2642 and CAM 07N/0032/2002.
NO MCYT
NO CAM
DS Docta Complutense
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