Effective-mass theory of carbon nanotube junctions

被引：69

作者：

Matsumura, H ^{[1
]}

Ando, T ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1998年 / 67卷 / 10期

关键词：

graphite; carbon nanotube; junction; five- and seven- member ring; conductance; effective-mass theory;

D O I：

10.1143/JPSJ.67.3542

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electronic states in junctions of nanotubes with different circumferences are studied in an effective-mass approximation. The junction is characterized by boundary conditions which mix wave functions associated with K and K' points. The wave functions obtained analytically at epsilon = 0 decay linearly with the distance from the thicker nanotube, showing that the conductance decays with the junction length in proportion to its third power.

引用

页码：3542 / 3551

页数：10

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