Ce2Cu2-xNixIn 中从局域价态到中间价态区域的演化
强关联电子
2011-11-22 v1
摘要
本文在宽温度范围内通过 X 射线粉末衍射、磁化率和电阻率测量研究了固溶体 Ce2Cu2-xNixIn 的多晶样品。铜原子被镍原子部分替代导致该体系的晶格参数和晶胞体积准线性减小。晶格压缩导致交换积分增大，并使得磁性 4f1 与非磁性 4f0 态的能级顺序发生反转，这与 Doniach 相图一致。在 Kondo 散射与晶体电场效应相互作用的局域区域中，杂化强度的增强伴随着传导电子在激发晶体场能级上散射的相对减少。(c) 2011 IOP Publishing Ltd.
引用
@article{arxiv.1111.4874,
title = {Evolution from localized to intermediate valence regime in Ce2Cu2-xNixIn},
author = {A. P. Pikul and D. Kaczorowski},
journal= {arXiv preprint arXiv:1111.4874},
year = {2011}
}
备注
This is an author-created, un-copyedited version of an article accepted for publication in Journal of Physics: Condensed Matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher-authenticated version is available online at doi:10.1088/0953-8984/23/45/456002