RT Journal Article
T1 Zero-magnetic-field dynamic scaling in Bi_2Sr_2CaCu_2O_8 thin films
A1 Sefrioui, Z.
A1 Arias, D.
A1 Leon, C.
A1 Santamaría Sánchez-Barriga, Jacobo
A1 González Herrera, Elvira María
A1 Vicent López, José Luis
AB We investigate the zero-magnetic-field dynamic scaling in Bi_2Sr_2CaCu_2O_8 thin films from nonlinear current-voltage (I-V) characteristics and by using the concavity criterion recently proposed by Strachan [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
LK https://hdl.handle.net/20.500.14352/52081
UL https://hdl.handle.net/20.500.14352/52081
LA eng
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
RD 6 abr 2025