Antiferroelectric phase transition in SbSI and SbSeI crystals

被引：29
|
作者：
Audzijonis, Algirdas [1 ]
Sereika, Raimundas [1 ]
Zaltauskas, Raimundas [1 ]
机构：
[1] Vilnius Pedag Univ, Dept Phys, LT-08106 Vilnius, Lithuania
来源：
SOLID STATE COMMUNICATIONS | 2008年 / 147卷 / 3-4期
关键词：
ferroelectrics; phase transitions; capacitance;
D O I：
10.1016/j.ssc.2008.05.008
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
This work represents existence of the high temperature antiferroelectric phase transitions in SbSI, SbSeI and BiSel crystals. The antiferrolectric phase transition is found by a measured capacitance change at a frequency of 1 kHz for the SbSI and SbSeI crystals grown by the Bridgman-Stockbarger technique in the temperature range of 270-440 K. Therefore, SbSI has three phases: ferroelectric (T < 295 K), antiferroelectric(295 < T < 410 K)and paraelectric(T > 410 K). SbSeI has two phases: antiferroelectric (T < 410 K) and paraelectric (T > 410 K). The antiferroelectric phase transition is of an intermediate type between displacive and order-disorder types. (C) 2008 Elsevier Ltd. All rights reserved.
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页码：88 / 89
页数：2
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