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Structure dependence of resonant tunneling transmission properties in well-in-well structures

JIA GUO-ZHI1,*

Affiliation

  1. Department of Fundamental Subject, Tianjin Institute of Urban Construction, Tianjin 300384, China

Abstract

A Schrödinger equation has been solved numerically for a well-in-well structure by the transfer matrix technique. Effects of structure parameters on the transmission characteristics of electron are investigated in detail. The relationship between the width of the middle well and the resonant energy levels in well-in-well structure is also studied. It is found that the first and the second quasi-bound energy levels decrease with the increasing of the width of the middle well. The first resonant energy changes more slowly than the second one. The tunneling time has also been investigated. The tunneling time, especially for the structure with the large well width, decreases with the increasing of the confinement energy..

Keywords

Transfer matrix technique, Well-in-well structure, Resonant tunneling.

Citation

JIA GUO-ZHI, Structure dependence of resonant tunneling transmission properties in well-in-well structures, Optoelectronics and Advanced Materials - Rapid Communications, 5, 4, April 2011, pp.430-433 (2011).

Submitted at: March 23, 2011

Accepted at: April 11, 2011