Heuristic model for slow relaxation of excess conductance in electron glasses

A. Vaknin, Z. Ovadyahu, M. Pollak

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

We discuss relaxation of excess conductance (Formula presented) observed in recent experiments on electron glasses. Using a simple model based on some salient features of a hopping system with interactions, we show that for relatively short times (Formula presented) scales like (Formula presented) and it becomes faster than that as time evolves. The crossover to a faster than (Formula presented) dependence occurs when (Formula presented) where (Formula presented) is the smallest relaxation rate in the system, and t is the observation time.

Original languageAmerican English
Pages (from-to)6692-6695
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume61
Issue number10
DOIs
StatePublished - 2000

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