  The phenomenon of Anderson localization wherein non-interacting electrons are
localized by quenched impurities is a subject matter that has been extremely
well studied. However, localization transition under the combined influence of
interaction and quenched disorder is less well understood. In this context we
study the localization transition in a two-dimensional Hubbard model under the
influence of a spin-selective disorder i.e, disorder which is operational on
just one of the spin-species. The model is analyzed by laying recourse to a
Quantum Monte Carlo based scheme. Using this approach we show the possibility
of a metal-insulator transition. However, we will show that this
metal-insulator transition is extremely sensitive to the filling-fraction
inherent in the system.
