Suppression of inelastic electron-electron scattering in Anderson Insulators

Abstract

We report on measurements of absorption from applied ac fields in Anderson-localized indium-oxide films. The absorption shows a roll-off at a frequency that is much smaller than the electron-electron scattering rate measured at the same temperature in diffusive samples of this material. These results are interpreted as evidence for discreteness of the energy spectrum.

4 figures

References in corpus (3)

• Temperature and field dependence of Dynamics in the Electron-Glass
• Conductance relaxation in the Electron-Glass; Microwaves versus infra-red response
• Optical excitation of Electron-Glasses