Share Email Print
cover

Proceedings Paper

Far-IR magneto-emission study of the quantum-hall state and breakdown of the quantum-hall effect
Author(s): Andre Raymond; C. Chaubet; Manijeh Razeghi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

FIR and transport measurements are undertaken on quasi-2D electron gas (2DEG) in the Quantum Hall Effect (QHE) regime of GaAs heterojunctions by means of cyclotron emission. The heating electric field is varied during the measurements which are conducted as Landau emission experiments in quantizing magnetic fields. Attention is given to the evolution of the emission spectra and the breakdown of the QHE when the electric field increases. Supplementary lines are identified in the FIR spectra that coincide with the minima of the Hall plateaus under low electric-field conditions. The nonhomogeneous distribution of the potential in the Quantum Hall state is examined to explain the supplementary lines. The nonequilibrium carrier distribution under high electric-field conditions leads to narrower Hall plateaus due to the breakdown of the equation Ns

Paper Details

Date Published: 1 February 1991
PDF: 7 pages
Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); doi: 10.1117/12.24546
Show Author Affiliations
Andre Raymond, Univ. des Sciences et Techniques du Languedoc (France)
C. Chaubet, Univ. des Sciences et Techniques du Languedoc (France)
Manijeh Razeghi, Thomson-CSF (United States)


Published in SPIE Proceedings Vol. 1362:
Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications
Manijeh Razeghi, Editor(s)

© SPIE. Terms of Use
Back to Top