LEAD SUBSTITUTION EFFECTS ON THE HYSTERESIS CURVES AND MAGNETIC IRREVERSIBILITY LINES OF 2212-COMPOUNDS

Authors
BOUZERAR R METTOUT B FENKOUCHE D SAVARY H
Citation
R. Bouzerar et al., LEAD SUBSTITUTION EFFECTS ON THE HYSTERESIS CURVES AND MAGNETIC IRREVERSIBILITY LINES OF 2212-COMPOUNDS, Physica. C, Superconductivity, 235, 1994, pp. 2787-2788
Citations number
5
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
4
Pages
2787 - 2788
Database
ISI
SICI code
0921-4534(1994)235:<2787:LSEOTH>2.0.ZU;2-B
Abstract
We discuss the nature of the magnetic irreversibility line for the Bi: 2212 compounds with two different lead contents. A crossover is observ ed in both cases at two different temperatures. This cross-over is con sistent with the dimensional change of the vortex ensemble predicted b y Glazman and Koshelev. This last approach provides two values of the anisotropy ratio in full agreement with the anisotropy decrease by Lea d. At the crossing of the IL, no rough change of the magnetization rel axation regime is observed.