THICKNESS DEPENDENCE OF THE MAGNETIC-PROPERTIES IN YBA2CU3O7-DELTA THIN-FILMS

Authors
PROZOROV R SHERIFF E YESHURUN Y SHAULOV A
Citation
R. Prozorov et al., THICKNESS DEPENDENCE OF THE MAGNETIC-PROPERTIES IN YBA2CU3O7-DELTA THIN-FILMS, Physica. C, Superconductivity, 282, 1997, pp. 2215-2216
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
4
Pages
2215 - 2216
Database
ISI
SICI code
0921-4534(1997)282:<2215:TDOTMI>2.0.ZU;2-3
Abstract
We report on magnetization measurements in laser ablated YBa2Cu3O7-del ta films with thickness 800 - 3000 Angstrom. The persistent current de nsity j and the magnetic relaxation rate decrease with increase of the thickness. At certain conditions this leads to a crossing of the rela xation curves measured in films of different thickness. These results are explained considering surface effects which cause a non-homogeneou s distribution of j along the film thickness.