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Digitale Medien

Negative photoconductivity due to carrier drag in GaAs/AlGaAs quantum wells (1989)

Juen, S. ; Höpfel, R. A. ; Gossard, A. C.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 54 (1989), S. 2097-2099

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Details

ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Negative photoconductivity caused by "carrier drag'' is experimentally verified for the first time. In p-modulation-doped GaAs/AlGaAs quantum wells carrier drag, leading to "negative absolute mobility'' of injected minority electrons, results in a decrease of the total in-plane current in the quantum wells. The temperature dependence of the measured differential photoconductivity quantitatively agrees with the expected behavior due to the effect of electron-hole scattering.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.101175

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