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

页码：363 / 365

页数：3

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