Orientational Ordering in Spatially Disordered Dipolar Systems
凝聚态物理
2009-10-28 v1
摘要
This letter addresses basic questions concerning ferroelectric order in positionally disordered dipolar materials. Three models distinguished by dipole vectors which 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
@article{arxiv.cond-mat/9505150,
title = {Orientational Ordering in Spatially Disordered Dipolar Systems},
author = {G. Ayton and M. J. P. Gingras and G. N. Patey},
journal= {arXiv preprint arXiv:cond-mat/9505150},
year = {2009}
}
备注
4 pages twocolumn LATEX style. 4 POSTSCRIPT figures available from [email protected]