X-ray topographic observation of lattice defects in heat-treated SrTiO3 crystals

Authors
Yoshimura, J Yamanaka, J Iwamoto, T Kimura, S
Citation
J. Yoshimura et al., X-ray topographic observation of lattice defects in heat-treated SrTiO3 crystals, MATER T JIM, 41(5), 2000, pp. 559-562
Citations number
15
Categorie Soggetti
Metallurgy
Journal title
MATERIALS TRANSACTIONS JIM
ISSN journal
09161821 → ACNP
Volume
41
Issue
5
Year of publication
2000
Pages
559 - 562
Database
ISI
SICI code
0916-1821(200005)41:5<559:XTOOLD>2.0.ZU;2-V
Abstract
A study of the heat treatment behavior of lattice defects in Vemeuil-grown SrTiO3 crystals is described. Heat treatment in this study was made in atmo spheric air at 1500 degrees C for 240 h in total. The sample crystals befor e and after the heat treatment were investigated by X-ray topography. The o bservation of the sample crystals shows that the rearrangement of dislocati ons and the strain relaxation of the whole crystals were greatly effected b y the heat treatment. In addition to those changes, the generation of new d efects such as slip bands and oxygen vacancy clusters was observed.