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FeBN(N≤6)团簇的结构与磁性
引用本文:杨 致,闫玉丽,赵文杰,雷雪玲,葛桂贤,罗有华. FeBN(N≤6)团簇的结构与磁性[J]. 物理学报, 2007, 56(5): 2590-2595
作者姓名:杨 致  闫玉丽  赵文杰  雷雪玲  葛桂贤  罗有华
作者单位:(1)河南大学理论物理研究所,开封 475001; (2)河南大学理论物理研究所,开封 475001;华东理工大学理学院,上海 200237
基金项目:国家自然科学基金(批准号:10174086)资助的课题.
摘    要:利用密度泛函理论中的广义梯度近似(GGA),在考虑自旋多重度后,预测了FeBN(N≤6)团簇的基态结构.结果表明基态团簇的自旋多重度分别为4,3,2,1,2和1,其中FeB4团簇比较稳定.同时对FeBN(N≤6)基态团簇的磁性做了系统地研究,发现除了FeB5团簇外,FeBN(N≤6)团簇的总磁矩和Fe原子磁矩随团簇尺寸的增大而减小. 关键词N团簇')" href="#">FeBN团簇自旋多重度磁矩

关 键 词:FeBN团簇  自旋多重度  磁矩
文章编号:1000-3290/2007/56(05)/2590-06
收稿时间:2006-06-09
修稿时间:2006-06-09

Structures and magnetism of FeBN (N≤6) clusters
Yang Zhi,Yan Yu-Li,Zhao Wen-Jie,Lei Xue-Ling,Ge Gui-Xian and Luo You-Hua. Structures and magnetism of FeBN (N≤6) clusters[J]. Acta Physica Sinica, 2007, 56(5): 2590-2595
Authors:Yang Zhi  Yan Yu-Li  Zhao Wen-Jie  Lei Xue-Ling  Ge Gui-Xian  Luo You-Hua
Affiliation:1.Institute for Theoretical Physics, Henan University, Kaifeng 475001, China; 2. School of Sience , East China University of Science and Technology, Shanghai 200237, China
Abstract:Taking account of spin-multiplicity states,the ground-state structures of FeBN(N≤6)clusters have been predicted using the generalized gradient approximation(GGA) density functional theory. The results indicate that the spin-multiplicity states of the ground-state clusters are respectively 4,3,2,1,2 and 1,and FeB4 is the most stable of the clusters. Also, we studied magnetic properties of the ground-state clusters systematically and found that the magnetic moment of Fe atom and total magnetic moment are decreasing with the increasing of cluster size except FeB5.
Keywords:FeBN clusters   spin-multiplicity state   magnetic moment
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