R. N. Bhatt

Transport and thermodynamic properties across the metal-insulator transition

Low-temperature magnetic susceptibility of Si: P in the nonmetallic region

Measurements of the phosphorus donor susceptibility ${\ensuremath{\chi}}_{D}(T)$ in Si: P have been made using a superconducting quantum interference device at phosphorus concen...

Absence of spin diffusion in most random lattices

We examine the metallic phase of the positionally disordered Anderson-Hubbard model as a prototype of a strongly correlated disordered metal. We find that the low-temperature th...

Search for a transition in the three-dimensional J Ising spin-glass

The three-dimensional Ising spin-glass in zero field with nearest-neighbor interactions having \ifmmode\pm\else\textpm\fi{}J distribution is studied by Monte Carlo simulations f...

Localization, wave-function topology, and the integer quantized Hall effect

In a magnetic field, a wave function in a two-dimensional system is uniquely specified by the position of its nodes. We show that for high fields and a weak random potential, mo...