Image shifts resulting from the misorientation of two individuals in GdCa4O(BO3)(3) crystal

Citation
Xb. Hu et al., Image shifts resulting from the misorientation of two individuals in GdCa4O(BO3)(3) crystal, J CRYST GR, 229(1), 2001, pp. 252-255
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CRYSTAL GROWTH
ISSN journal
0022-0248 → ACNP
Volume
229
Issue
1
Year of publication
2001
Pages
252 - 255
Database
ISI
SICI code
0022-0248(200107)229:1<252:ISRFTM>2.0.ZU;2-1
Abstract
Large GdCa4O(BO3)(3) crystal has been grown by the Czochralski method. The quality of GdCa4O(BO3)(3) crystal was assessed by white-beam synchrotron ra diation topography. It has been found that there is a sub-grain boundary in the GdCa4O(BO3)(3) crystal. The boundary divides the large GdCa4O(BO3)(3) crystal into two individuals. Due to the misorientation between the two ind ividuals, the image shifts can be observed in the synchrotron topographs. B ased on the misorientation determined by high resolution X-ray diffractomet er, the image shifts were calculated for several reflections. The calculati ons are in agreement with the measurements from the topographs very well. I n addition, the formation mechanism of sub-grain boundary is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.