PRESSURE-DEPENDENCE OF RAMAN-SCATTERING BY CHROMIUM-DOPED HALIDE ELPASOLITE CRYSTALS

被引：14
|
作者：
SLIWCZUK, U [1 ]
RINZLER, AG [1 ]
KAPPERS, LA [1 ]
BARTRAM, RH [1 ]
机构：
[1] UNIV CONNECTICUT,INST MAT SCI,STORRS,CT 06269
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1991年 / 52卷 / 02期
关键词：
RAMAN SCATTERING; ELPASOLITE; CHROMIUM; PRESSURE; PHONONS;
D O I：
10.1016/0022-3697(91)90085-E
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Raman spectra of the halide elpasolites Cs2NaYCl6, K2NaGaF6 and K2NaScF6 are recorded as functions of pressure in a diamond-anvil cell. A value of the ratio of Gruneisen parameter and bulk modulus is derived for each of the four Raman-active modes from the rate of increase of its vibration frequency with pressure. Frequencies of an a1g local mode and a t2g resonance mode are also determined as functions of pressure.
引用
收藏
页码：363 / 365
页数：3
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