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arXiv · 0904.4093

Conductance relaxation in the Electron-Glass; Microwaves versus infra-red response

Z. Ovadyahu
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Abstract

We study the time-dependent conductance of electron-glasses excited by electromagnetic radiation at microwaves (MW) and infra-red 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 MW-enhanced conductance is not due to heating. These findings are discussed in terms of an energy E_{c} that characterizes the equilibrium charge distribution of the electron-glass.

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Z. Ovadyahu. 2009-04-27. Conductance relaxation in the Electron-Glass; Microwaves versus infra-red response. https://doi.org/10.1103/physrevlett.102.206601

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