Dielectric properties of [(CH3)2NH2]3CuCl5 crystal in external electric field

被引：1

作者：

Eliyashevskyy, Yu. ^{[1
]}

Czapla, Z. ^{[1
]}

Dacko, S. ^{[1
]}

机构：

[1] Univ Wroclaw, Inst Expt Phys, PL-50204 Wroclaw, Poland

来源：

PHASE TRANSITIONS | 2010年 / 83卷 / 05期

关键词：

commensurable-incommensurable transitions; phase transitions; electric permittivity; polarization; PHASE-TRANSITION; COMMENSURATE PHASE; SINGLE-CRYSTAL; <(CH3)2NH2>2CUCL4;

D O I：

10.1080/01411594.2010.481473

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Dielectric properties of [(CH3)2NH2]3CuCl5 under the influence of external electric field was studied. At constant values of electric field intensity, the characteristic temperatures Tm and Tc are distinguished, where the maximum value of permittivity and the jump-like decrease of permittivity are observed, respectively. The splitting of the transition is connected with the presence of a defect density wave. Observed in the sinusoidal field, the hysteretic behaviour of permittivity is connected with the slow transition to the ferroelectric phase and the coexistence of the phases in the range (Tm-Tc). The experimentally observed behaviour was explained qualitatively using the Holakovsky-Dvorak theoretical model.

引用

页码：378 / 388

页数：11