X-ray diffraction study of ion thermal vibrations in R2CuO4 (R = Pr and Gd) crystals

Authors
Levin, AA Smolin, YI Shepelev, YF Golovenchits, EI Sanina, VA
Citation
Aa. Levin et al., X-ray diffraction study of ion thermal vibrations in R2CuO4 (R = Pr and Gd) crystals, PHYS SOL ST, 42(1), 2000, pp. 153-160
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
42
Issue
1
Year of publication
2000
Pages
153 - 160
Database
ISI
SICI code
1063-7834(2000)42:1<153:XDSOIT>2.0.ZU;2-R
Abstract
An X-ray diffraction study is reported of the symmetry in the spatial distr ibution of thermal vibrations of Cu2+, Gd3+, and Pr3+ ions in Gd2CuO4 and P r2CuO4 crystals. An analysis of the pattern of the angular thermal-vibratio n amplitude distribution obtained experimentally at different temperatures allows a conclusion about the character of the local Jahn-Teller effect for the Cu2+ ions, structural phase transitions, and the orbital ground state of the Cu2+ ions. (C) 2000 MAIK "Nauka/Interperiodica".