Elastic constants of α-GeO2

被引：43

作者：

Grimsditch, M

Polian, A

Brazhkin, V

Balitskii, D

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Univ Paris 06, F-75252 Paris 05, France

[3] Russian Acad Sci, Inst High Pressure Phys, Troitsk 142092, Moscow Region, Russia

[4] Moscow MV Lomonosov State Univ, Moscow 117234, Russia

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 06期

关键词：

D O I：

10.1063/1.367117

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The elastic constants of alpha-GeO2, the quartzlike polymorph of germanium dioxide, have been determined using Brillouin scattering. The data were obtained using a high quality single crystal of alpha-GeO2. When compared with existing data on alpha-SiO2, our results show that the shear constants are considerably softened in GeO2. This could be an indication that the observed pressure induced phase change is related to a shear instability. (C) 1998 American Institute of Physics.

引用

页码：3018 / 3020

页数：3

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