Mesoscopic effects in the electron-glass

Z. Ovadyahu*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Electronic transport studies of mesoscopic systems may yield unique information on a variety of physical processes. Here we discuss results of transport measurements on electron-glasses with sizes approaching the mesoscopic regime of hopping conductance. The study reveals fluctuations in the conductance as function of the gate voltage in samples that are smaller than ≈100μm, when measured at liquid helium temperatures. The relative amplitude of the conductance fluctuations decreases with the sample volume while, down to sample size of few microns, the non-equilibrium features that are attributed to the electron-glass are indistinguishable from those observed in macroscopic samples. These include the memory-dip, slow relaxation, and simple-aging behavior. The mesoscopic conductance fluctuations, as well as the 1/f noise, appear to be different phenomena, independent of the electron-glass dynamics.

Original languageEnglish
Title of host publicationPerspectives of Mesoscopic Physics
Subtitle of host publicationDedicated to Yoseph Imry's 70th Birthday
PublisherWorld Scientific Publishing Co.
Pages183-200
Number of pages18
ISBN (Electronic)9789814299442
ISBN (Print)981429943X, 9789814299435
DOIs
StatePublished - 1 Jan 2010

Bibliographical note

Publisher Copyright:
© 2010 by World Scientific Publishing Co. Pte. Ltd. All Rights Reserved.

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