THE ORIGINS OF GROWTH SPIRALS ON LASER-ABLATED YBA2CU3O7-DELTA THIN-FILMS

Authors
AINDOW M YEADON M
Citation
M. Aindow et M. Yeadon, THE ORIGINS OF GROWTH SPIRALS ON LASER-ABLATED YBA2CU3O7-DELTA THIN-FILMS, Philosophical magazine letters, 70(1), 1994, pp. 47-53
Citations number
13
Categorie Soggetti
Physics, Condensed Matter
Journal title
Philosophical magazine letters → ACNP
ISSN journal
09500839
Volume
70
Issue
1
Year of publication
1994
Pages
47 - 53
Database
ISI
SICI code
0950-0839(1994)70:1<47:TOOGSO>2.0.ZU;2-A
Abstract
Correlation of transmission electron microscopy and scanning tunnellin g microscopy images obtained from a laser-ablated epitaxial thin film of YBa2Cu3O7-delta suggests that the spiral features observed on the s urface of these films may arise at mixed dislocations introduced as ha lf-loops, rather than at screw dislocations formed by the coalescence of incoherent growth fronts as has been proposed previously.