Dielectric dispersion in [N(C2H5)4]2ZnCl4 single crystal

被引：9

作者：

Biskupski, P ^{[1
]}

Tylczynski, Z ^{[1
]}

Slaboszewska, M ^{[1
]}

机构：

[1] Adam Mickiewicz Univ, Inst Phys, PL-61614 Poznan, Poland

来源：

FERROELECTRICS LETTERS SECTION | 2001年 / 28卷 / 3-4期

关键词：

dielectric dispersion; phase transitions; activation energy;

D O I：

10.1080/07315170108202949

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Temperature dependence of the complex dielectric permittivity of [N(C2H5)(4)](2)ZnCl4 crystal was measured in the frequency range 300 Hz divided by 1 MHz. Jump-wise changes in the real and imaginary components of E were observed for the three crystallographic directions at the phase transition temperature. The dielectric dispersion clearly apparent in the high-temperature phase, rapidly disappears at the phase transition. The anomalous changes in the dielectric permittivity are related to vibrations of the tetraethylammonium ion. The activation energy of these vibrations amounts to 40 kJ/mol.

引用

页码：55 / 65

页数：11

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