Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Frozen magnetization in Bi2Sr2Ca2Cu3O10|
|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.|
|Editor:||Elsevier Science Bv|
|Citation:||Physica C. Elsevier Science Bv, v. 264, n. 41732, n. 213, n. 219, 1996.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.