Engineering interband tunneling in nanowires with diamond cubic or zincblende crystalline structure based on atomistic modeling
Abstract
We present an investigation in the device parameter space of band-to-band tunneling in nanowires with a diamond cubic or zincblende crystalline structure. Results are obtained from quantum transport simulations based on Non-Equilibrium Green's functions with a tight-binding atomistic Hamiltonian. Interband tunneling is extremely sensitive to the longitudinal electric field, to the nanowire cross section, through the gap, and to the material. We have derived an approximate analytical expression for the transmission probability based on WKB theory and on a proper choice of the effective interband tunneling mass, which shows good agreement with results from atomistic quantum simulation.
Keywords
Cite
@article{arxiv.1201.4100,
title = {Engineering interband tunneling in nanowires with diamond cubic or zincblende crystalline structure based on atomistic modeling},
author = {Pino D'Amico and Paolo Marconcini and Gianluca Fiori and Giuseppe Iannaccone},
journal= {arXiv preprint arXiv:1201.4100},
year = {2013}
}
Comments
4 pages, 3 figures. Final version, published in IEEE Trans. Nanotechnol. It differs from the previous arXiv version for the title and for some changes in the text and in the references