Zone center phonons of orthorhombic perovskite YAlO3

Authors
Gupta, HC Ashdhir, P
Citation
Hc. Gupta et P. Ashdhir, Zone center phonons of orthorhombic perovskite YAlO3, J SOL ST CH, 146(2), 1999, pp. 287-290
Citations number
9
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF SOLID STATE CHEMISTRY
ISSN journal
00224596 → ACNP
Volume
146
Issue
2
Year of publication
1999
Pages
287 - 290
Database
ISI
SICI code
0022-4596(199909)146:2<287:ZCPOOP>2.0.ZU;2-5
Abstract
A short range force constant model has been applied to investigate the phon ons in YAlO3 perovskite in the orthorhombic phase. The calculations with si s stretching and one bending force constants provide a satisfactory agreeme nt for the available Raman frequencies. Based on the present calculations, the infrared frequencies have been assigned for the first time. (C) 1999 Ac ademic Press.