Study of the elastic properties of glycine phosphite crystals (Gly•h3PO3) by Brillouin scattering

被引：2
作者：
Lapsa, K
Drozdowski, M
Ziobrowski, P
Szczepanska, L
机构：
[1] Poznan Univ Technol, Inst Phys, PL-60965 Poznan, Poland
[2] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
来源：
FERROELECTRICS LETTERS SECTION | 1999年 / 25卷 / 5-6期
关键词：
Brillouin scattering; elastic properties; ferroelectric phase transition;
D O I：
10.1080/07315179908204643
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The results concerning the elastic properties of glycinium phosphite (GPI) crystals obtained by Brillouin scattering method are reported. The temperature 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. Obtained results confirm the existence of the ferroelectric phase transition (P2(1)/a - P2(1)) at 224 K.
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收藏
页码：129 / 133
页数：5
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