详细信息
第一性原理对NaBe_n(n=1—12)团簇最低能量结构及其电子性质的研究 ( EI收录)
First-principles study of the lowest energy structures and electronic properties of NaBe_n(n=1—12) clusters
文献类型:期刊文献
中文题名:第一性原理对NaBe_n(n=1—12)团簇最低能量结构及其电子性质的研究
英文题名:First-principles study of the lowest energy structures and electronic properties of NaBe_n(n=1—12) clusters
作者:葛桂贤[1];井群[1];杨致[1];闫玉丽[1];雷雪玲[1];赵文杰[1];王清林[1];罗有华[1,2]
机构:[1]河南大学物理与信息光电子学院理论物理研究所;[2]华东理工大学理学院,上海200237
年份:2006
卷号:55
期号:9
起止页码:4548
中文期刊名:物理学报
外文期刊名:Acta Physica Sinica
收录:CSTPCD;;EI(收录号:20064210188194);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:国家自然科学基金(批准号:10174086)资助的课题.~~
语种:中文
中文关键词:NaBen团簇;最低能量结构;电子性质
外文关键词:NaBen clusters, lowest-energy structures, electronic properties
摘要:从第一性原理出发对NaBen(n=1—12)团簇的最低能量结构和电子性质进行了研究.结果表明,掺杂原子(Na)导致主团簇Ben的几何结构发生显著变化;出现了共价键和金属键的成键特性;Na-Be最近邻间距和能隙随着团簇尺寸的增加出现了振荡;n=4是团簇的幻数.
The geometric configuration and electronic structure of NaBen ( n = 1--12) clusters have been studied by using density functional theory (DFT).The results show that the atomic structures of NaBen (n = 1--12) clusters are significantly different from the host geometries; the nearest inter-atomic distances of Na-Be and the energy gaps (HOMO-LUMO) oscillate with increasing size. It is found that at size n = 4, 6 and 9, the clusters are more stable than neighboring ones, especially the NaBe4 cluster. Also, the evolution with increasing size for the electronic properties of NaBen (n = 1--12) clusters are discussed.
参考文献:
正在载入数据...
