Low-frequency acoustic study of ferroelastic phase transitions in Ba2NaNb5O15

被引：4

作者：

Gridnev, SA ^{[1
]}

Biryukov, AV ^{[1
]}

Ivanov, ON ^{[1
]}

机构：

[1] Voronezh State Tech Univ, Dept Solid State Phys, Voronezh 394026, Russia

来源：

FERROELECTRICS LETTERS SECTION | 1999年 / 25卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

improper ferroelastic; phase transition; internal friction;

D O I：

10.1080/07315179908204578

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The peculiarities of low-frequency internal friction near the first order low-temperature (110K) and second order high-temperature (573 K) phase transitions in improper Ba2NaNb5O15 ferroelastic were studied. A large and wide internal friction peak and diffused step-like change in the temperature dependence of shear modulus were also observed within an incommensurate phase between these two phase transitions.

引用

页码：11 / 15

页数：5

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