Far-IR magneto-emission study of the quantum-hall state and breakdown of the quantum-hall effect

Andre Raymond; C. Chaubet; Manijeh Razeghi

doi:10.1117/12.24546

1 February 1991 Far-IR magneto-emission study of the quantum-hall state and breakdown of the quantum-hall effect

Andre Raymond, C. Chaubet, Manijeh Razeghi

Proceedings Volume 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications; (1991) https://doi.org/10.1117/12.24546
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications, 1990, Aachen, Germany

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

Citation Download Citation

Andre Raymond, C. Chaubet, and Manijeh Razeghi "Far-IR magneto-emission study of the quantum-hall state and breakdown of the quantum-hall effect", Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); https://doi.org/10.1117/12.24546

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available