Temperature dependence of the conductivity and minimum quantum mobility of a highly disordered dilute two-dimensional electron gas
Document Type
Article
Publication Date
1-1-1990
Abstract
We report the first experimental observations of magnetic-field-independent corrections to the conductivity of a weakly interacting 2D electron gas on solid on H2. These incoherent corrections, which are substantially larger than the weak-localization terms at high helium-gas densities, are estimated via an electron-trapping model. The model has essentially no adjustable parameters and gives a self-consistent extrapolation between the weak- and strong-disorder limits. In the regime in which trapping is dominant we observe a residual electron mobility res T-1 associated with a lower quantum limit of diffusion. © 1990 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
First Page
3333
Last Page
3336
Recommended Citation
Adams, P. (1990). Temperature dependence of the conductivity and minimum quantum mobility of a highly disordered dilute two-dimensional electron gas. Physical Review Letters, 65 (26), 3333-3336. https://doi.org/10.1103/PhysRevLett.65.3333