Screening and conductance relaxations in insulating granular aluminium thin films
arXiv:1207.1558 · doi:10.1088/1742-6596/376/1/012008
Abstract
We have recently found in insulating granular Al thin film a new experimental feature (Delahaye et al., Phys. Rev. Lett. 106, 186602, 2011), namely the existence of a conductance relaxation that is not sensitive to gate voltage changes. This conductance relaxation is related to the existence of a metallic-like screening in the film and can be used to estimate its characteristic length scale. In the present paper, we give some experimental details on how this feature was measured and present our first results on the screening length temperature dependence.
14th Transport in interacting disordered systems (TIDS14) conference, September 5-8 2011, Acre (Israel)
References in corpus (6)
- Mean field theory for the three-dimensional Coulomb glass
- Symmetrical field effect and slow electron relaxation in granular aluminium
- The Memory Effect in Electron Glasses
- Heterogeneous dynamics of the three dimensional Coulomb glass out of equilibrium
- Coexistence of anomalous field effect and mesoscopic conductance fluctuations in granular aluminium
- Slow Conductance Relaxation in Insulating Granular Al: Evidence for Screening Effects