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Proceedings Paper

I-V response of a two-terminal nanodevice using tight-binding theory
Author(s): A. Alexopoulos
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Paper Abstract

We present a theoretical model for an atomic diode made up of two one-dimensional semi-infinite linear arrays which are separated by a distance d on a surface substrate. By the use of one-dimensional Green's functions we obtain the local density of states (LDOS) of the system for the continuum limit appropriate to metallic adsorbates and the tight-binding model appropriate to semiconductor adsorbates. The I-V characteristics are studied in the limit of a weakly coupling perturbation between the linear arrays of atoms as well as the limit where the inter-array potential is strongly influenced by an electric field. The latter means that there is strong dependence of the tunneling amplitudes on the applied field which are calculated using suitably modified transfer matrix method.

Paper Details

Date Published: 29 December 2005
PDF: 12 pages
Proc. SPIE 6037, Device and Process Technologies for Microelectronics, MEMS, and Photonics IV, 60371I (29 December 2005); doi: 10.1117/12.638151
Show Author Affiliations
A. Alexopoulos, Defence Science and Technology Organisation (Australia)

Published in SPIE Proceedings Vol. 6037:
Device and Process Technologies for Microelectronics, MEMS, and Photonics IV
Jung-Chih Chiao; Andrew S. Dzurak; Chennupati Jagadish; David V. Thiel, Editor(s)

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