ENHANCED VORTEX PINNING IN ANNEALED TLBA2CACU2OX THIN-FILMS

Authors
VENTURINI EL NEWCOMER PP SIEGAL MP OVERMYER DL
Citation
El. Venturini et al., ENHANCED VORTEX PINNING IN ANNEALED TLBA2CACU2OX THIN-FILMS, IEEE transactions on applied superconductivity, 7(2), 1997, pp. 1592-1595
Citations number
17
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
7
Issue
2
Year of publication
1997
Part
2
Pages
1592 - 1595
Database
ISI
SICI code
1051-8223(1997)7:2<1592:EVPIAT>2.0.ZU;2-J
Abstract
Furnace anneals of TIBa2CaCu2Ox thin films at temperatures above 500 d egrees C cause partial TIOx loss. High-resolution transmission electro n microscopy images reveal nanometer-scale discontinuities (pinched st acking faults) in the microstructure of annealed films. Significant in creases in the vortex pinning potential and critical current density a t elevated temperatures in strong magnetic fields are observed and are attributed to the presence of these localized defects.