Electronic structure and surface-localized state of hyper-graphite network

被引:8
作者
Takagi, Y [1 ]
Fujita, M
Igami, M
Kusakabe, K
Wakabayashi, K
Nakada, K
机构
[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan
[2] Univ Tokyo, Inst Solid State Phys, Tokyo 1068666, Japan
[3] Kyoto Univ, Yakawa Inst Theoret Phys, Kyoto 6068224, Japan
[4] Aoyama Gakuin Univ, Coll Sci & Engn, Atsugi, Kanagawa 2430123, Japan
关键词
graphite; semiconducting surface;
D O I
10.1016/S0379-6779(98)00698-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We study electronic structures of an extended three-dimensional graphite network and its slab performing of the tight binding model. The one of networks we study is bipartite and three-coordinated, and also found in some materials like a-ThSi2. The electronic structures of this networks have characters which are peculiar to 2D graphite. One of these characters is that these networks are a semi metal and the other is that these networks which are cut in proper direction have a surface localized states (Edge State), which originate from the topological feature of the network as well as the zigzag edge in 2D graphite. We call these networks which are made by concept extending graphite network for higher dimensions 'the Hyper Graphite'.
引用
收藏
页码:2574 / 2575
页数:2
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