COMPUTER-SIMULATIONS OF OXYGEN ORDERING IN QUENCHED YBCO CRYSTAL

Authors
STERNIK M PARLINSKI K
Citation
M. Sternik et K. Parlinski, COMPUTER-SIMULATIONS OF OXYGEN ORDERING IN QUENCHED YBCO CRYSTAL, Ferroelectrics, 191(1-4), 1997, pp. 267-272
Citations number
7
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
191
Issue
1-4
Year of publication
1997
Pages
267 - 272
Database
ISI
SICI code
0015-0193(1997)191:1-4<267:COOOIQ>2.0.ZU;2-S
Abstract
A two-dimensional model describing the oxygen ordering in the CuO1-del ta basal plane of Y Ba2Cu3O7-delta is studied using the molecular-dyna mics technique. We report the evolution of the system with delta = 0.5 and delta = 0.3 quenched from OI to OII phase and from tetragonal to OII phase. Depending on the oxygen concentration, annealing of quenche d OI phase leads either to the formation of OII precipitates within OI phase or antiphase domains of OII phase.