MISFIT DISLOCATIONS IN LASER-ABLATED HETEROEPITAXIAL YBA2CU3O7-DELTA ON MGO(001)

Authors
AINDOW M NORRIS DJ CHENG TT
Citation
M. Aindow et al., MISFIT DISLOCATIONS IN LASER-ABLATED HETEROEPITAXIAL YBA2CU3O7-DELTA ON MGO(001), Philosophical magazine letters, 74(4), 1996, pp. 267-272
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
Philosophical magazine letters → ACNP
ISSN journal
09500839
Volume
74
Issue
4
Year of publication
1996
Pages
267 - 272
Database
ISI
SICI code
0950-0839(1996)74:4<267:MDILHY>2.0.ZU;2-5
Abstract
High-resolution electron microscopy has been used to show that for epi taxial YBa2Cu3O7-delta thin films on MgO(001) with the '0 degrees' ori entation, the interface between the substrate and deposit is semicoher ent, rather than 'graphoepitaxial' as proposed previously. The misfit is accommodated by arrays of misfit dislocations with Burgers vectors 1/2[110], line directions [110] and a regular spacing of 3.3 nm.