A Note on the Dynamical Critical Phenomena at the Structural Phase Transition in KDCO3
A Note on the Dynamical Critical Phenomena at the Structural Phase Transition in KDCO3
复制标题
KDCO3结构相变动力学临界现象的注记
DOI：
10.1143/jpsj.65.1718
复制
发表时间：
1996
影响因子：
1.7
通讯作者：
R. Kanao
中科院分区：
文献类型：
--
作者：
Y. Yamada;R. Kanao
从理论上研究了kdco3结构相变过程中序参量的动力学行为。特别分析了近年来利用三轴自旋回波光谱技术进行超高能分辨中子能谱的实验结果，并与超声测量结果进行了比较。验证了基于伪自旋-声子耦合系统广义朗格文运动方程的分析与中子散射和超声测量结果基本一致。
The dynamical behavior of the order parameter at structural phase transition in KDCO 3 is investigated theoretically. In particular, recent experimental results on ultra high energy resolution neutron spectroscopy using TASSE (triple axis spin echo spectroscopy) technique are analyzed and compared with the results of the ultrasonic measurements. It is verified that analysis based on generalized-Langvein equation of motion of pseudospin-phonon coupled system can give overall agreements with the results of both neutron scattering and ultrasonic measurements.