Low temperature vibrational spectra, lattice dynamics, and phase transitions in some potassium hexahalometallates: K2[XY6] with X=Sn or Te and Y=Cl or Br
Low temperature vibrational spectra, lattice dynamics, and phase transitions in some potassium hexahalometallates: K2[XY6] with X=Sn or Te and Y=Cl or Br
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DOI：
10.1063/1.437378
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发表时间：
1979-06
影响因子：
4.4
通讯作者：
S. L. Chodos;R. W. Berg
中科院分区：
文献类型：
--
作者：
S. L. Chodos;R. W. Berg
本文研究了K_2XY_6晶体低温相变声子频率的观测和识别。利用一个简单的晶格动力学模型，分析了文献中和本文中得到的振动拉曼光谱和红外光谱数据。所使用的模型是以前用来解释几个相关化合物的振动光谱的一个扩展。
This paper deals with the observation and identification of phonon frequencies resulting from the low temperature phase transitions in K2XY6 crystals. By means of a simple lattice dynamical model, the vibrational Raman and IR data available in the literature and obtained here have been analyzed. The model used is an extension of one previously used to explain the vibronic spectra of several related compounds.