Line shape of the Raman spectrum and the disorder mechanism of the methylammonium group in a [(CH3)(2)NH2]5Cd3Cl11 crystal

被引：0

作者：

Sobiestianskas, R ^{[1
]}

Abe, K ^{[1
]}

Shigenari, T ^{[1
]}

机构：

[1] VILNIUS STATE UNIV, FAC PHYS, VILNIUS, LITHUANIA

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 10期

关键词：

(CH3)(2)NH2]5Cd3Cl11; Raman line shape; motional narrowing; order-disorder; phase transition;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Raman line shape of the symmetric stretching vibration of the dimethylammonium (DMA) group at 890 cm(-1) in the spectrum for a [(CH3)(2)NH2]5Cd3Cl11 (DMAPCC) crystal was analyzed. The temperature dependence of this vibration mode is explained in terms of the motional narrowing due to the disordered NH2 group in DMA(3), which results in splitting of the DMA(2) line in the internal mode region. The disorder mechanism is discussed by comparing the results with the two relaxation times obtained from the dielectric dispersion data.

引用

页码：3146 / 3149

页数：4

共 12 条

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