Effect of strong terahertz radiation on magnetoconductivity in two dimensions

R.A. Lewis; W. Xu; P.M. Koenraad; I.V. Bradley

doi:10.1142/9789812777805_0013

Effect of strong terahertz radiation on magnetoconductivity in two dimensions

R.A. Lewis, W. Xu, P.M. Koenraad, I.V. Bradley

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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.

Original language	English
Title of host publication	Proceedings of Physical Phenomena at High Magnetic Fields IV
Place of Publication	Singapore
Publisher	World Scientific
Pages	52-55
ISBN (Print)	9810248962
DOIs	https://doi.org/10.1142/9789812777805_0013
Publication status	Published - 2002

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title = "Effect of strong terahertz radiation on magnetoconductivity in two dimensions",

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.",

author = "R.A. Lewis and W. Xu and P.M. Koenraad and I.V. Bradley",

year = "2002",

doi = "10.1142/9789812777805_0013",

language = "English",

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T1 - Effect of strong terahertz radiation on magnetoconductivity in two dimensions

AU - Lewis, R.A.

AU - Xu, W.

AU - Koenraad, P.M.

AU - Bradley, I.V.

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

U2 - 10.1142/9789812777805_0013

DO - 10.1142/9789812777805_0013

M3 - Chapter

SN - 9810248962

SP - 52

EP - 55

BT - Proceedings of Physical Phenomena at High Magnetic Fields IV

PB - World Scientific

CY - Singapore

ER -

Effect of strong terahertz radiation on magnetoconductivity in two dimensions

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