Fano resonances in quasi-one-dimensional electron waveguides

Date

1993

Authors

Tekman, E.
Bagwell, P. F.

Editor(s)

Advisor

Supervisor

Co-Advisor

Co-Supervisor

Instructor

BUIR Usage Stats
1
views
52
downloads

Citation Stats

Series

Abstract

In the spectroscopy of atoms and molecules, an asymmetric Fano resonance arises whenever a bound state associated with one electronic configuration is coupled to the ionization continuum of a different configuration. A strikingly similar resonance appears for electronic transport in conductors with more than one subband, independent of the specific details of the system under study. We develop a two-subband approximation which describes the Fano resonances for conduction through an electron waveguide containing donor impurities, for Γ-X-Γ intervalley tunneling in a GaAsAlxGa1-xAsGaAs heterojunction, and for an electron waveguide coupled to a resonant cavity. Interference between the direct and intersubband transmission channels gives rise to the asymmetric Fano resonance. © 1993 The American Physical Society.

Source Title

Physical Review B

Publisher

American Physical Society

Course

Other identifiers

Book Title

Keywords

Degree Discipline

Degree Level

Degree Name

Citation

Published Version (Please cite this version)

Language

English