Study of the elastic properties of glycine phosphite crystals (Gly center dot h(3)PO(3)) by Brillouin scattering

Authors
Lapsa, K Drozdowski, M Ziobrowski, P Szczepanska, L
Citation
K. Lapsa et al., Study of the elastic properties of glycine phosphite crystals (Gly center dot h(3)PO(3)) by Brillouin scattering, FERROELEC L, 25(5-6), 1999, pp. 129-133
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS LETTERS SECTION
ISSN journal
07315171 → ACNP
Volume
25
Issue
5-6
Year of publication
1999
Pages
129 - 133
Database
ISI
SICI code
0731-5171(1999)25:5-6<129:SOTEPO>2.0.ZU;2-3
Abstract
The results concerning the elastic properties of glycinium phosphite (GPI) crystals obtained by Brillouin scattering method are reported. The temperat ure measurements of the relative change Delta V/V of the phase velocity for acoustic modes propagating in q = [100], q = [010], q = [110] and q = [011 ] directions have been performed in the temperature range 300 K - 170 K. Ob tained results confirm the existence of the ferroelectric phase transition (P2(1)/a - P2(1)) at 224 K.