Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/67224
Type: Artigo de periódico
Title: Frozen magnetization in Bi2Sr2Ca2Cu3O10
Author: Makarov, VV
Kopelevich, Y
Moehlecke, S
Abstract: In this paper we discuss a peculiar low-temperature magnetic relaxation measured in a c-axis oriented bulk Bi2Sr2Ca2Cu3O10 compound sample in magnetic field H = 1 T applied along the c-axis. It is shown that at temperatures T < T-g approximate to 20 K, M(t) relaxation curves are best described by the equation M - M(eq) - M(g) = At--beta, i.e. the irreversible magnetization M(irr) = M - M(eq) consists of a relaxing magnetization M(rel) = At--beta and a ''non-relaxing'' (''glass'') magnetization M(g), while for T > T-g, M(g) is absent. The transition to the ''glassy'' state cannot be understood as a vortex-liquid-vortex-glass transition, It is suggested that the existence of M(g) is associated with a pinning-induced misalignment between ''pancake'' vortices in different superconducting layers.
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/0921-4534(96)00226-2
Date Issue: 1996
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

Files in This Item:
File Description SizeFormat 
WOSA1996UW98900008.pdf462.8 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.