Topological Effects on Conductance of Nanotubes |
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| Authors: | Hajime Matsumura Tsuneya Ando |
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| Institution: | Institute for Solid State Physics, University of Tokyo , 7-22-1 Roppongi, Minato-ku, Tokyo , 106-8666 , Japan |
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| Abstract: | Abstract 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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| Keywords: | graphite carbon nanotube junction five- and seven-member ring conductance effective-mass theory |
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