Effects of finite deformed length in carbon nanotubes

Jun-Qiang Lu; Jian Wu; Wenhui Duan; Bing-Lin Gu
May 2004
Applied Physics Letters;5/24/2004, Vol. 84 Issue 21, p4203
Academic Journal
The effect of finite deformed length is demonstrated by squashing an armchair (10,10) single-walled carbon nanotube with two finite tips. Only when the deformed length is long enough, an effectual metal–semiconductor–metal heterojunction can be formed in the metallic tube. The effect of finite deformed length is explained by the quantum tunneling effect. Furthermore, some conceptual designs of nanoscale devices are proposed from the metal–semiconductor–metal heterojunction. © 2004 American Institute of Physics.


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