Origin of single molecule magnet behavior of a trinuclear [Ni2Dy] cluster

被引：4
|
作者：
Klokishner, Sophia [1 ]
Reu, Oleg [1 ]
机构：
[1] Moldavian Acad Sci, Inst Appl Phys, MD-2028 Kishinev, Moldova
来源：
CHEMICAL PHYSICS LETTERS | 2012年 / 552卷
关键词：
CYANO-BRIDGED CLUSTERS; MAGNETIZATION; SPIN; ANISOTROPY; COMPLEXES; MN(III); BARRIER; DY; CRYSTAL;
D O I：
10.1016/j.cplett.2012.09.065
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The manifestations of single ion anisotropy of the Dy-III ion in the key physical properties of the [L2Ni2Dy][ClO4] single molecule magnet have been examined. The crystal field acting on the Dy-III ion and the exchange interaction coupling the Dy-III and Ni-II ions are included in the model. It is shown that the role of the Ni-II ions is only to increase the total angular momentum of the cluster via coupling through superexchange with the Dy-III ion. The model describes well the observed temperature dependence of the magnetic susceptibility and the field dependence of magnetization. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：130 / 135
页数：6
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