Charge ordering in oxides : a conundrum solved by resonant diffraction
材料科学
2007-05-23 v1
摘要
We show that in mixed-valence 3d transition metal oxides undergoing a structural transition, the low temperature phase results from an effective ordering of the charge. This arrangement and the quantitative evaluation of the atomic charges are determined by using resonant x-ray scattering experiments further analyzed with the help of ab initio calculations of the corresponding scattering factors. We have found that this reorganization concerns only a small fraction of electron and is necessary to reconcile all the experimental data.
引用
@article{arxiv.cond-mat/0301377,
title = {Charge ordering in oxides : a conundrum solved by resonant diffraction},
author = {Y. Joly and S. Grenier and J. E. Lorenzo},
journal= {arXiv preprint arXiv:cond-mat/0301377},
year = {2007}
}
备注
4 pages, 2 figures