相变
拉曼光谱
三角晶系
四面体
凝聚态物理
相(物质)
极化(电化学)
六方晶系
极地的
转化(遗传学)
铁学
材料科学
结晶学
化学
光学
晶体结构
量子相变
物理
量子临界点
物理化学
量子力学
有机化学
生物化学
基因
作者
Manisha Bansal,S. K. Deb,A. P. Roy,V. C. Sahni
标识
DOI:10.1016/0038-1098(80)90034-4
摘要
A subtle first order phase transition in LiKSO4 has been discovered with the help of a temperature dependent study of the Raman intensity measurements of certain polar modes in different polarization configurations. The room temperature hexagonal C66 (P63) phase transforms to trigonal C43v (P31c) phase at 201°K while cooling; the reverse transformation (on heating) takes place at 242°K. The phase transition appears to be primarily associated with a cooperative reorientation of SO4 tetrahedra in the crystal.
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