SOUND-VELOCITY HYSTERESIS IN THE HIGH-TEMPERATURE INCOMMENSURATE PHASE RANGE OF LIKSO4 CRYSTAL

被引:9
作者
CHARNAYA, EV
BORISOV, BF
KRAJEWSKI, T
RADJABOV, AK
机构
[1] Institute of Physics, St. Petersburg State University, 198904 St. Petersburg, Petrodvoretz
关键词
D O I
10.1016/0038-1098(93)90697-L
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The temperature dependences of the velocity of the longitudinal acoustical waves, propagating along x, y, z axes of a hexagonal structure of a high temperature ferroelastic-superionic LiKSO4 crystal were measured in the temperature range between 300 and 930 K, including the commensurate and incommensurate modulated phases. The pronounced hysteresis, spreading over all the studied range T > T(c), is discovered for the wave, propagating along the y-axis.
引用
收藏
页码:443 / 445
页数:3
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