Transport in the electron-glass under energy pumping

V. Orlyanchik*, A. Vaknin, Z. Ovadyahu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The conductance G of In2O3-x films in the hopping regime has been measured as function of time for a fixed temperature and at various electric fields F. When F is switched at t = 0 from F1 to F22 > F1 the conductance increases reflecting the non-Ohmic nature of field assisted hopping. However, G(F2, t ≥ 0) is observed to be non-stationary - it increases with time in a sluggish manner. After F2 is re-adjusted to F1, the conductance slowly approaches its equilibrium value. The latter is presumably the slow relaxation process previously reported to occur in electron glasses excited far from equilibrium. The magnitudes of these non-ergodic effects depend on F and vanish for F < F*, the field below which G is Ohmic. The temporal evolution of G(F2) is ascribed to the slow increase of the electron energy due to the action of F.

Original languageAmerican English
Pages (from-to)67-72
Number of pages6
JournalPhysica Status Solidi (B): Basic Research
Issue number1
StatePublished - 2002


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