Electronic properties of a doped zigzag nanotube are investigated by a self-consistent tight-binding method. We propose that a doped nanotube with donor atoms on one side and acceptors on the other can function as a nano diode. It is shown that a potential step in the tube, created by two different types of doping in this case, causes the nonlinear rectifying effect. ©1999 American Institute of Physics.
Applied
Fonte:
Physics Letters -- January 4, 1999 -- Volume 74, Issue 1, pp. 79-81
Keivan Esfarjani and Amir A. Farajian
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
Yuichi Hashi
Hitachi Tohoku Software Co., Honcho, Aoba Ku, Sendai 980, Japan
Yoshiyuki Kawazoe
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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