PROTON MAGNETIC-RELAXATION STUDY OF CATION DYNAMICS IN TMACA

被引：9

作者：

JAGADEESH, B

RAJAN, PK

VENU, K

SASTRY, VSS

机构：

[1] School of Physics, University of Hyderabad, Hyderabad

来源：

SOLID STATE COMMUNICATIONS | 1993年 / 86卷 / 12期

关键词：

D O I：

10.1016/0038-1098(93)90112-Z

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cation dynamics in tris(trimethylammonium) nonachlorodiantimonate, which shows different phases as a function of temperature, is studied through proton spin lattice relaxation measurements at five Larmor frequencies. Results show a clear signature of the para-ferroelectric phase transition at 363K and the existence of dynamically inequivalent trimethylammonium cations and methyl groups, both in the ratio of 1:2. Various activation energies associated with the dynamics of the cations and methyl groups are calculated.

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页码：803 / 806

页数：4

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