Kondo Screening and Magnetic Ordering in Frustrated UNi4B.
Kondo Screening and Magnetic Ordering in Frustrated UNi4B.
复制标题
受挫的 UNi4B 中的近藤筛选和磁排序。
DOI：
10.1103/physrevlett.77.5126
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发表时间：
1996
影响因子：
8.6
通讯作者：
Núñez
中科院分区：
文献类型：
--
作者：
Lacroix;Canals;Núñez
UNi{sub 4}B表现出不寻常的性能，特别是，一个独特的反铁磁安排涉及只有2/3的U网站。基于该化合物的低温行为，我们认为剩余的1/3 U位由于Kondo效应而被取代。我们推导出一个模型，其中磁性位置和磁性位置的共存是晶体结构的挫折和5{italf}矩的不稳定性之间的竞争的结果。美国物理学会（American Physical Society）
UNi{sub 4}B exhibits unusual properties and, in particular, a unique antiferromagnetic arrangement involving only 2/3 of the U sites. Based on the low temperature behavior of this compound, we propose that the remaining 1/3 U sites are nonmagnetic due to the Kondo effect. We derive amodel in which the coexistence of magnetic and nonmagnetic U sites is the consequence of the competition between frustration of the crystallographic structure and instability of the 5{ital f} moments. {copyright} {ital 1996 The American Physical Society.}