Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2011-06-16
Physical Review Letters 106 (2011) 186602
Physics
Condensed Matter
Disordered Systems and Neural Networks
Scientific paper
10.1103/PhysRevLett.106.186602
It is shown that the conductance relaxations observed in electrical field effect measurements on granular Al films are the sum of two contributions. One is sensitive to gate voltage changes and gives the already reported anomalous electrical field effect. The other one is independent of the gate voltage history and starts when the films are cooled down to low temperature. Their relative amplitude is strongly thickness dependent which demonstrates the existence of a finite screening length in our insulating films and allows its quantitative estimate (about 10nm at 4K). This metallic-like screening should be taken into account in the electron glass models of disordered insulators.
Delahaye Julien
Grenet Thierry
Honoré Jean
No associations
LandOfFree
Slow Conductance Relaxation in Insulating Granular Al: Evidence for Screening Effects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Slow Conductance Relaxation in Insulating Granular Al: Evidence for Screening Effects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slow Conductance Relaxation in Insulating Granular Al: Evidence for Screening Effects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-189582