INVESTIGADORES
SERQUIS Adriana Cristina
artículos
Título:
Angular dependent vortex pinning mechanisms in YBCO coated conductors and thin films
Autor/es:
L. CIVALE; B. MAIOROV; A. SERQUIS; J. O. WILLIS; Y. J. COULTER; H. WANG; Q. X. JIA; P. N. ARENDT; J. L. MACMANUS-DRISCOLL; M. P. MALEY; S. R. FOLTYN
Revista:
APPLIED PHYSICS LETTERS
Editorial:
American Institute of Physics
Referencias:
Año: 2004 vol. 84 p. 2121 - 2123
ISSN:
0003-6951
Resumen:
We compare the angular-dependent critical current density (Jc) in YBa2Cu3O7 films deposited onMgO templates grown by ion-beam-assisted deposition ~IBAD!, and on single-crystal substrates.We identify three angular regimes in which pinning is dominated by different types of correlated anduncorrelated defects. Those regimes are present in all cases, but their extension and characteristicsare sample dependent, reflecting differences in texture and defect density. The more defective natureof the films on IBAD turns into an advantage as it results in higher Jc, demonstrating that theperformance of the films on single crystals is not an upper limit for the IBAD coatedconductors.
