Brillouin frequency shifts in the ferroelectric phase of NaNO2

Authors
Yurtseven, H Aydogdu, A
Citation
H. Yurtseven et A. Aydogdu, Brillouin frequency shifts in the ferroelectric phase of NaNO2, J MOL STRUC, 597(1-3), 2001, pp. 31-38
Citations number
43
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR STRUCTURE
ISSN journal
00222860 → ACNP
Volume
597
Issue
1-3
Year of publication
2001
Pages
31 - 38
Database
ISI
SICI code
0022-2860(20011003)597:1-3<31:BFSITF>2.0.ZU;2-O
Abstract
In this study we calculate the Brillouin frequencies for the L-mode [010], [001] and [100] in the ferroelectric phase of NaNO2 (T-C = 163 C) by means of gamma -Gruneisen relations using the thermal expansivity data from the l iterature. The predicted frequencies are in good agreement with the observe d Brillouin frequencies for the modes studied in the ferroelectric phase of NaNO2. This indicates that our method presented here predicts the observed behavior of NaNO2 in the ferroelectric phase. (C) 2001 Elsevier Science B. V. All rights reserved.