Geometrical Structure Effect on Localization Length of Carbon Nanotubes
RAN Wen-Qi1, CHANG Jun2, LU Han-Tao1, SU Yue-Hua3, LUO Hong-Gang2, XIANG Tao2
1School of Physics, Peking University, Beijing 100871
2Institute of Theoretical Physics and Interdisciplinary Center of Theoretical Studies, Chinese Academy of Sciences, PO Box 2735, Beijing 100080
3Center for Advanced Study, Tsinghua University, Beijing 100084
Geometrical Structure Effect on Localization Length of Carbon Nanotubes
RAN Wen-Qi1;CHANG Jun2;LU Han-Tao1;SU Yue-Hua3;LUO Hong-Gang2;XIANG Tao2
1School of Physics, Peking University, Beijing 100871
2Institute of Theoretical Physics and Interdisciplinary Center of Theoretical Studies, Chinese Academy of Sciences, PO Box 2735, Beijing 100080
3Center for Advanced Study, Tsinghua University, Beijing 100084
Abstract： The localization length and density of states of carbon nanotubes are evaluated within the tight-binding approximation. By comparison with the corresponding results for the square lattice tubes, it is found that the hexagonal structure affects strongly the behaviour of the density of states and localization lengths of carbon nanotubes.
2005, Vol. 22 
