Graduate School in Nonlinear Science
MIDIT OFD CATS
Modelling, Nonlinear Dynamics Optics and Fluid Dynamics Chaos and Turbulence Studies
and Irreversible Thermodynamics Risø National Laboratory Niels Bohr Institute and
Technical University of Denmark Building 128 Department of Chemistry
Building 321 P.O. Box 49 University of Copenhagen
DK-2800 Lyngby DK-4000 Roskilde DK-2100 Copenhagen Ø
Denmark Denmark Denmark
Growth and domain structure of the YBCO thin films on the NdGaO3
substrates with surface normal inclined to [110]
Peter B. Mozhaev
Gennady A. Ovsyannikov
Philippe V. Komissinskii
Iosif M. Kotelyanskii
Ekaterina I. Raksha
Institute of Radio Engineering and Electronics RAS
Moscow, Russia
Igor K. Bdikin
Institute of Solid State Physics RAS
Chernogolovka, Moscow district, Russia
MIDIT-seminar 485
Thursday, March 29, 2001, 14.00 h
at IMM, Bldg. 305, Room 018, DTU
Abstract:
Growth, crystal structure and the electrophysical properties of the epitaxial
YBa2Cu3Ox (YBCO) thin films, deposited on the NdGaO3 (NGO) substrates with
inclination of the surface normal from the [110] direction around the [001]
axis with angle 5 ° to 26.6 ° , both with and without an epitaxial interlayer
of CeO2, were studied.
The orientation of the YBCO films is determined by the presence of
symmetrically-equivalent directions in the substrate and the CeO2 interlayer;
and by the film deposition rate.
High deposition rate results in the [001] orientation of the YBCO thin film
independently on the substrate or interlayer orientation. With increase of
the inclination angle the twinning in the YBCO thin film is suppressed either
in one or in both twin complexes.