Shear elasticity and spontaneous twisting of the improper ferroelastic crystal K2Ba(NO2)4

被引:2
|
作者
Gridnev, S. A.
Ivanov, O. N.
Vasil'eva, A. V.
Kirpichnikova, L. F.
机构
[1] Voronezh State Tech Univ, Dept Solid State Phys, Voronezh 394026, Russia
[2] Russian Acad Sci, Shubnikov Inst Crystallog, Moscow 119333, Russia
关键词
D O I
10.1088/0022-3727/40/3/025
中图分类号
O59 [应用物理学];
学科分类号
摘要
Using a torsion pendulum, the peculiarities of low- frequency shear elastic and anelastic properties of the improper ferroelastic crystal K2Ba(NO2)(4) have been investigated for various crystallographic oriented samples at a temperature range in the vicinity of the phase transition point (T-C = 420 K). The work gives insights into the nature of the internal friction and spontaneous torque arising in the samples at the Curie point.
引用
收藏
页码:856 / 862
页数:7
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