Structure dependence of resonant tunneling transmission properties in well-in-well structures
JIA GUO-ZHI1,*
Affiliation
- 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