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Topological Effects on Conductance of Nanotubes

 

作者: Hajime Matsumura,   Tsuneya Ando,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 2000）
卷期: Volume 340, issue 1  

页码: 725-730

 

ISSN:1058-725X

 

年代: 2000

 

DOI:10.1080/10587250008025554

 

出版商: Taylor & Francis Group

 

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

 

数据来源: Taylor

 

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. At ε=0, they decay linearly with the distance from the thicker nanotube, showing that the conductance decays with the junction length in proportion to its third power.

 

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