A.model of cation ordering in A(B'_xB''_1-x)O_3 relaxors
Condensed Matter
2009-10-31 v1
Abstract
We have shown that the lattice-gas model with four repulsive pair interaction constants (corresponding to the four nearest coordination shells) on a simple cubic lattice is a sufficient model to describe the main types of cation ordering in relaxors. The phase diagram, obtained by the cluster variation method, shows the sequences of transitions between the phases 1:2 - 1:1 - disordered and 1:2 - disordered.
Keywords
Cite
@article{arxiv.cond-mat/0010323,
title = {A.model of cation ordering in A(B'_xB''_1-x)O_3 relaxors},
author = {S. Lapinskas and E. E. Tornau and A. Rosengren},
journal= {arXiv preprint arXiv:cond-mat/0010323},
year = {2009}
}
Comments
13 pages in latex format, 6 ps figures. submitted to Phys. Rev. B