Effect of strong terahertz radiation on magnetoconductivity in two dimensions

TitleEffect of strong terahertz radiation on magnetoconductivity in two dimensions
Publication TypeJournal Article
Year of Publication2002
AuthorsR.A Lewis, W. Xu, P.M Koenraad, I.V Bradley
JournalInternational Journal of Modern Physics B
Volume16
Number20-22
Pagination2964-2967
Date PublishedAug
Type of ArticleArticle
ISBN Number0217-9792
Accession NumberISI:000178300100014
KeywordsELECTRON
Abstract

The interaction between strong THz radiation from a free electron laser and an electron sheet in a high-mobility, low-density, GaAs/AlGaAs structure has been investigated in magnetotransport experiments over a wide range of wavelengths, intensities, magnetic fields, and temperatures. Photovoltage and photocurrent effects are evident in both longitudinal and transverse potential differences. Broad cyclotron resonance is observed to high temperature and connected with a decrease in electron density. The change in electron temperature under THz radiation is estimated from changes in the magnitude of the magnetoresistivity oscillations at low lattice temperature. The effect of the magnetic field is to suppress the rise in electron temperature relative to the zero field case.

URL<Go to ISI>://000178300100014
Division

GUTHz

Department

FELIX

PID

ca9b3bd2c7d8dd576682287cbb793664

Alternate TitleInt. J. Mod. Phys. B

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