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Title: Conductance and resonant tunneling in multi-channel double barrier structures under transverse and longitudinal electric fields

Abstract

Transport properties of electrons through biased double barrier semiconductor structures with finite transverse width w{sub y}, in the presence of a channel-mixing transverse electric field E{sub T} (along the y-axis), were studied. We solve the multichannel Schrödinger equation using the transfer matrix method and transport properties, like the conductance G and the transmission coefficients T{sub ij} have been evaluated as functions of the electrons' energy E and the transverse and longitudinal (bias) electric forces, f{sub T} and f{sub b}. We show that peak-suppression effects appear, due to the applied bias. Similarly, coherent interference of wave-guide states induced by the transverse field is obtained. We show also that the coherent interference of resonant wave-guide states gives rise to resonant conductance, which can be tuned to produce broad resonant peaks, implying operation frequencies of the order of 10 THz or larger.

Authors:
;  [1]
  1. Departamento de Ciencias Básicas, UAM-Azcapotzalco, C.P. 02200 México D.F. (Mexico)
Publication Date:
OSTI Identifier:
22399311
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DIFFUSION BARRIERS; ELECTRIC CONDUCTIVITY; ELECTRIC FIELDS; ELECTRONS; INTERFERENCE; SCHROEDINGER EQUATION; SEMICONDUCTOR MATERIALS; THZ RANGE; TRANSFER MATRIX METHOD; TUNNEL EFFECT

Citation Formats

Pereyra, Pedro, E-mail: pereyrapedro@gmail.com, and Mendoza-Figueroa, M. G. Conductance and resonant tunneling in multi-channel double barrier structures under transverse and longitudinal electric fields. United States: N. p., 2015. Web. doi:10.1063/1.4915333.
Pereyra, Pedro, E-mail: pereyrapedro@gmail.com, & Mendoza-Figueroa, M. G. Conductance and resonant tunneling in multi-channel double barrier structures under transverse and longitudinal electric fields. United States. doi:10.1063/1.4915333.
Pereyra, Pedro, E-mail: pereyrapedro@gmail.com, and Mendoza-Figueroa, M. G. Sat . "Conductance and resonant tunneling in multi-channel double barrier structures under transverse and longitudinal electric fields". United States. doi:10.1063/1.4915333.
@article{osti_22399311,
title = {Conductance and resonant tunneling in multi-channel double barrier structures under transverse and longitudinal electric fields},
author = {Pereyra, Pedro, E-mail: pereyrapedro@gmail.com and Mendoza-Figueroa, M. G.},
abstractNote = {Transport properties of electrons through biased double barrier semiconductor structures with finite transverse width w{sub y}, in the presence of a channel-mixing transverse electric field E{sub T} (along the y-axis), were studied. We solve the multichannel Schrödinger equation using the transfer matrix method and transport properties, like the conductance G and the transmission coefficients T{sub ij} have been evaluated as functions of the electrons' energy E and the transverse and longitudinal (bias) electric forces, f{sub T} and f{sub b}. We show that peak-suppression effects appear, due to the applied bias. Similarly, coherent interference of wave-guide states induced by the transverse field is obtained. We show also that the coherent interference of resonant wave-guide states gives rise to resonant conductance, which can be tuned to produce broad resonant peaks, implying operation frequencies of the order of 10 THz or larger.},
doi = {10.1063/1.4915333},
journal = {Journal of Applied Physics},
number = 11,
volume = 117,
place = {United States},
year = {Sat Mar 21 00:00:00 EDT 2015},
month = {Sat Mar 21 00:00:00 EDT 2015}
}