TITLE

Microwave induced zero-conductance state in a Corbino geometry two-dimensional electron gas with capacitive contacts

AUTHOR(S)
Bykov, A. A.; Marchishin, I. V.; Goran, A. V.; Dmitriev, D. V.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/23/2010, Vol. 97 Issue 8, p082107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Microwave induced photoconductivity of a two-dimensional electron gas in selectively doped GaAs/AlAs heterostructures has been studied using the Corbino geometry with capacitive contacts at a temperature T=1.6 K and magnetic field B up to 0.5 T. Zero-conductance states have been observed in the samples under study subject to microwave radiation, similarly to the samples with Ohmic contacts. It has been shown that Ohmic contacts do not play a significant role for observation of zero-conductance states induced by microwave radiation.
ACCESSION #
53421550

 

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