Temperature dependence of non-equilibrium effects in a Fermi glass
The Racah Institute of Physics, The Hebrew University,
2 Department of Physics, University of California, Riverside, CA 92521, USA
Accepted: 15 March 1998
We report on the dependence on temperature and disorder of the glassy behavior observed in thin films of in the strongly localized regime. The glassy behavior is reflected as a local minimum at the cool-down gate voltage in the conductance vs. gate-voltage, sweeps of field-effect experiments. It is shown that these non-ergodic effects are controlled by an inverse-Arrhenius law and involves a characteristic energy which increases with disorder.
PACS: 72.80.Sk – Insulators / 72.20.Ht – High-field and nonlinear effects
© EDP Sciences, 1998