Conductance relaxation in the electron glass: Microwave versus infrared response

Z. Ovadyahu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We study the time-dependent conductance of electron glasses excited by electromagnetic radiation at microwave and infrared frequencies. In either case, the conductance G is enhanced during exposure, but its time dependence after the radiation is turned off is qualitatively different depending on the frequency. For comparison, results of excitation produced by a gate voltage and temperature changes are also shown. The glassy nature of the system allows us to demonstrate that the microwave-enhanced conductance is not due to heating. These findings are discussed in terms of an energy Ec that characterizes the equilibrium charge distribution of the electron glass.

Original languageEnglish
Article number206601
JournalPhysical Review Letters
Volume102
Issue number20
DOIs
StatePublished - 18 May 2009

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