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Far-infrared photoconductivity as a probe for non-equilibrium phase transitions in n-GaAs

URN to cite this document:
Obermaier, R. ; Böhm, W. ; Prettl, Wilhelm ; Dirnhofer, P.
Date of publication of this fulltext: 26 Oct 2010 12:12


A strong enhancement of the cyclotron resonance induced FIR-photoconductivity has been observed in n-GaAs close to the threshold of impact ionization breakdown. The results are discussed in terms of phase transitions far from equilibrium showing that the photoconductivity reflects the Curie-Weiss behaviour of the generalized susceptibility.

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