Magnetic Field Suppression of the Conducting Phase in Two Dimensions

Abstract

The anomalous conducting phase that has been shown to exist in zero field in dilute two-dimensional electron systems in silicon MOSFETs is driven into a strongly insulating state by a magnetic field of about 20 kOe applied parallel to the plane. The data suggest that in the limit of T -> 0 the conducting phase is suppressed by an arbitrarily weak magnetic field. We call attention to striking similarities to magnetic field-induced superconductor-insulator transitions.

Locations

• Physical Review Letters - View
• arXiv (Cornell University) - View - PDF
• DataCite API - View