COMPARISON BETWEEN SIMULATED WEAK-BEAM IMAGES - APPLICATION TO THE EXTINCTION CRITERION IN ELASTICALLY ANISOTROPIC CRYSTALS

Authors
DOUIN J VEYSSIERE P SAADA G
Citation
J. Douin et al., COMPARISON BETWEEN SIMULATED WEAK-BEAM IMAGES - APPLICATION TO THE EXTINCTION CRITERION IN ELASTICALLY ANISOTROPIC CRYSTALS, Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties, 77(5), 1998, pp. 1323-1340
Citations number
17
Categorie Soggetti
Physics, Applied","Material Science","Physics, Condensed Matter","Metallurgy & Metallurigical Engineering
Journal title
Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties → ACNP
ISSN journal
13642804
Volume
77
Issue
5
Year of publication
1998
Pages
1323 - 1340
Database
ISI
SICI code
1364-2804(1998)77:5<1323:CBSWI->2.0.ZU;2-T
Abstract
This paper investigates the reasons why the weak-beam contrast of disl ocations is largely insensitive to elastic anisotropy. Particular atte ntion is paid to the applicability of the g.b = 0 invisibility criteri on for Burgers vector determination to crystals with large elastic ani sotropy factors. For this purpose, a method has been designed to allow for a direct comparison between weak-beam images simulated under diff erent g.b imaging conditions.