FERROELASTIC TRANSITION IN SOME SCHEELITE-TYPE CRYSTALS.

被引：0

作者：

Ishibashi, Yoshihiro ^{[1
]}

Hara, Kazuhiro ^{[1
]}

Sawada, Akitatsu ^{[1
]}

机构：

[1] Nagoya Univ, Nagoya, Jpn, Nagoya Univ, Nagoya, Jpn

来源：

Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics | 1987年 / 150卷 / 1-2期

关键词：

LIGHT - Brillouin Scattering - PHONONS - RAMAN SCATTERING;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The experimental results of the Brillouin scattering in several scheelite-type crystals are briefly reviewed. The high pressure Raman scattering studies of LaNbO//4 and NdNbO//4 crystals were recently carried out and have revealed that the behavior of their lowest frequency optical modes is quite different from the one reported for BiVO//4. A lattice model for the ferroelastic transition from a tetragonal phase is presented and discussed.

引用

页码：258 / 264

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