Structural studies of the distorted perovskite Ca0.25Cu0.75TiO3

Authors
Moussa, SM Kennedy, BJ
Citation
Sm. Moussa et Bj. Kennedy, Structural studies of the distorted perovskite Ca0.25Cu0.75TiO3, MATER RES B, 36(13-14), 2001, pp. 2525-2529
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH BULLETIN
ISSN journal
00255408 → ACNP
Volume
36
Issue
13-14
Year of publication
2001
Pages
2525 - 2529
Database
ISI
SICI code
0025-5408(20011101)36:13-14<2525:SSOTDP>2.0.ZU;2-#
Abstract
The crystal structure of Ca0.25Cu0.75TiO3 has been studied between 25 and 1 000 degreesC using powder neutron diffraction methods. The diffraction data is well described in space group N-3, and there is no indication of any cr ystallographic phase transition. The preference of the Jahn-Teller active C u ion for square planar geometry is believed to be a significant factor in the stabilization of the observed structure. (C) 2001 Elsevier Science Ltd. All rights reserved.