Phases coexistence of hydrogen-bonded mixed ferroelectric and antiferroelectric crystals

被引：6
|
作者：
Trybula, Z [1 ]
Kaszynski, J [1 ]
机构：
[1] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland
来源：
FERROELECTRICS | 2004年 / 298卷
关键词：
ferroelectric; proton glass; low temperature; coexistence;
D O I：
10.1080/00150190490423859
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The problem proton-glass and ferroelectric phases coexistence in Rb1-x(NH4)(x)H2AsO4 (RADA) and K1-x (NH4)(x) H2PO4 (KADP) crystals based on dielectric studies up to temperature 0.3 K is presented. The measurements were performed in the helium-3 cryostat in the temperature range from 300 K to 0.3 K. Glass behavior for the RADA is present even for a small concentration x = 0.01, whereas for the KADP the proton glass occurs for a concentration x > 0.05. The partial phase diagrams of RADP and KADP as a function of fractional ammonium concentration x and temperature T are presented.
引用
收藏
页码：347 / 351
页数：5
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