We present an ab initio based method which gives clear insight into the interplay between the hybridization, the coulomb exchange, and the crystal-field interactions, as the degree of 4f localization is varied across a series of strongly correlated cerium systems. The results for the ordered magnetic moments, magnetic structure, and ordering temperatures are in excellent agreement with experiment, including the occurence of a moment collapse of non-Kondo origin. In contrast, standard ab initio density functional calculations fail to predict, even qualitatively, the trend of the unusual magentic properties.
@article{arxiv.cond-mat/0002107,
title = {Strongly Correlated Cerium Systems: Non-Kondo Mechanism for Moment Collapse},
author = {Eric M. Collins and Nicholas Kioussis and Say Peng Lim and Bernard R. Cooper},
journal= {arXiv preprint arXiv:cond-mat/0002107},
year = {2009}
}
Comments
A shorter version of this has been submitted to PRL