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

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.