Superstructure induced by a topological defect in graphitic cones

被引：28

作者：

Kobayashi, K ^{[1
]}

机构：

[1] Ochanomizu Univ, Fac Sci, Dept Phys, Bunkyo Ku, Tokyo 1128610, Japan

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.61.8496

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When a pentagon defect is introduced into a gaphite sheet, a cone structure is formed. We simulate scanning-tunneling-microscopy (STM) images of the graphitic cone based on density-functional calculations. Simulated STM images show approximately root 3 x root 3 superstructures consisting of ring patterns which reproduce well the petal-like structure observed in experiments. An analysis using the effective-mass theory shows that the superstructures by the topological defects are qualitatively different from those observed often around defects of flat graphite surfaces.

引用

页码：8496 / 8500

页数：5

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