DIELECTRIC-DISPERSION IN FERROELECTRICS [NH2(CH3)2]3SB2CL9 AND [NH2(CH3)2]3SB2BR9

被引:28
作者
BATOR, G
JAKUBAS, R
机构
[1] Institute of Chemistry, University of Wroclaw
来源
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1995年 / 147卷 / 02期
关键词
D O I
10.1002/pssa.2211470230
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Dielectric dispersion of [NH2(CH3)2]3Sb2Cl9 (DMACA) and [NH2(CH3)2]3Sb2Br9 (DMABA) single crystals is investigated over the frequency range 5 x 10(2) to 5 x 10(8) Hz. The dielectric behaviour of DMABA is determined by the properties of two relaxators: a low-frequency relaxator in the MHz region revealing critical slowing down and a high-frequency relaxator in the GHz region. Dielectric response of the DMACA crystal can be well fitted to a Debye law with only one relaxator which obeys the classical critical slowing down characteristic of a second-order phase transition.
引用
收藏
页码:591 / 600
页数:10
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