Finite-length effects on the band of deformed metallic carbon nanotubes

摘要：

Based upon the tight-binding and metallic band model, we have studied the band structure of deformed carbon nanotubes. Using the quantum box boundary condition, we have discussed how the finite-length of the tubes affects the energy bands of two types of deformed carbon nanotubes. It is found that the conductor-semiconductor phase transitions will appear for the finite length carbon nanotubes, and the energy gaps of those tubes are found to oscillate periodically with both the tube length and the deformation strain.

关键词： Tight-binding Carbon nanotube Finite length effect phase transition

作者: Linfeng Yang Tingtai Wang Shengman Liu Jingchang Zhang

作者单位: Zhongyuan University of Technology, Zhengzhou 450007, China

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）