Spontaneous polarization of Gd2(MoO4)3
作者:
E. Sawaguchi,
L. E. Cross,
期刊:
Journal of Applied Physics
(AIP Available online 1973)
卷期:
Volume 44,
issue 6
页码: 2541-2544
ISSN:0021-8979
年代: 1973
DOI:10.1063/1.1662610
出版商: AIP
数据来源: AIP
摘要:
The spontaneous electric polarizationPshas been measured for Gd2(MoO4)3over the temperature range from 4.2 °K to the Curie point. Near 4 °K the maximumPsis slightly less than 0.29 &mgr;C/cm2with a very low temperature coefficient. An electric field enforced phase transition from paraelectric to ferroelectric at temperatures just above zero‐fieldTcdemonstrates the first‐order nature of the phase change. Better agreement was found nearTcbetweenPsand the relation (T − T1)1/3than betweenPsand a Landau‐type function.
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