4 papers
Quantum Point Contacts and Beyond: New Results on Mesoscopic Conductance and Fluctuations
Mukunda P. Das, Frederick Green, Jagdish S. Thakur
We summarize the main results of a microscopically based kinetic theory, applicable to open quantum point contacts (QPCs) driven up to high fields. The governing role of gauge inva…
A central role for the exchange-correlation hole in the 2D metal-insulator transition
D. J. W. Geldart, D. Neilson, J. S. Thakur
The 2D metal-insulator transition can be induced either by decreasing the carrier density or by increasing the spin polarization by applying a magnetic field parallel to the plane.…
Central role of exchange-correlation hole in the 2D metal-insulator
J. S. Thakur, D. Neilson
We show that the metal to insulator transition, whether generated by decreasing the electron density or by increasing the spin alignment, is determined by a universal functional fo…
Destabilization of the 2D conducting phase by an in-plane magnetic field
J. S. Thakur, D. Neilson
We propose a mechanism for the recently reported destabilization by an in-plane magnetic field of the conducting phase of low density electrons in 2D. We apply our self-consistent…