%0 Journal Article
%@ 0031-9007
%A Baenninger, M
%A Ghosh, A
%A Pepper, M
%A Beere, HE
%A Farrer, I
%A Ritchie, DA
%D 2008
%F discovery:1314472
%I AMER PHYSICAL SOC
%J PHYS REV LETT
%K METAL-INSULATOR-TRANSITION, QUANTUM HALL LIQUID, ANDERSON TRANSITION, GROUND-STATE, CONDUCTIVITY, DENSITY, GAS, SYSTEMS, LATTICE, FIELD
%N 1
%T Low-temperature collapse of electron localization in two dimensions
%U https://discovery.ucl.ac.uk/id/eprint/1314472/
%V 100
%X We report direct experimental evidence that the insulating phase of a disordered, yet strongly interacting two-dimensional electron system becomes unstable at low temperatures. As the temperature decreases, a transition from insulating to metal-like transport behavior is observed, which persists even when the resistivity of the system greatly exceeds the quantum of resistivity h/e(2). The results have been achieved by measuring transport on a mesoscopic length scale while systematically varying the strength of disorder.
%Z © 2008 The American Physical Society