ORIENTATIONAL ORDERING IN SPATIALLY DISORDERED DIPOLAR SYSTEMS

被引:54
作者
AYTON, G [1 ]
GINGRAS, MJP [1 ]
PATEY, GN [1 ]
机构
[1] TRIUMF,VANCOUVER,BC V6T 2A3,CANADA
关键词
D O I
10.1103/PhysRevLett.75.2360
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This Letter addresses basic questions concerning ferroelectric order in positionally disordered dipolar materials. Three models distinguished by dipole vectors that have one, two, or three components are studied by computer simulation. Randomly frozen and dynamically disordered media are considered. It is shown that ferroelectric order is possible in spatially random systems, but that its existence is very sensitive to the dipole vector dimensionality and the motion of the medium. A physical analysis of our results provides significant insight into the nature of ferroelectric transitions.
引用
收藏
页码:2360 / 2363
页数:4
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