Lattice dynamics of orthorhombic perovskite YMnO3

Authors
Gupta, HC Ashdhir, P
Citation
Hc. Gupta et P. Ashdhir, Lattice dynamics of orthorhombic perovskite YMnO3, PHYSICA B, 262(1-2), 1999, pp. 1-4
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
262
Issue
1-2
Year of publication
1999
Pages
1 - 4
Database
ISI
SICI code
0921-4526(199902)262:1-2<1:LDOOPY>2.0.ZU;2-Q
Abstract
A short-range force constant model has been applied to investigate the phon ons in YMnO3 perovskite in the orthorhombic phase. The calculations with si x stretching and two bending force constants provide a satisfactory agreeme nt for the available Raman and infrared frequencies. Based on the present c alculations, the infrared frequencies have been assigned for the first time . (C) 1999 Elsevier Science B.V. All rights reserved.