Publications (4)
Correlated electrons in the presence of disorder
K. Byczuk, W. Hofstetter, U. Yu +1
Several new aspects of the subtle interplay between electronic correlations and disorder are reviewed. First, the dynamical mean-field theory (DMFT)together with the geometrically…
Generalized Multiband Typical Medium Dynamical Cluster Approximation: Application to (Ga,Mn)N
Yi Zhang, R. Nelson, Elisha Siddiqui +7
We generalize the multiband typical medium dynamical cluster approximation and the formalism introduced by Blackman, Esterling and Berk so that it can deal with localization in mul…
A dynamical mean-field approximation study of a tight-binding model for GaMnAs
A. -M. Nili, U. Yu, J. Moreno +2
The magneto-optical properties of the ferromagnetic semiconductor GaMnAs are studied within the dynamical mean-field approximation (DMFA). A material-specific multiba…
On the Nature of Localization in Ti doped Si
Yi Zhang, R. Nelson, K. -M. Tam +7
Intermediate band semiconductors hold the promise to significantly improve the efficiency of solar cells, but only if the intermediate impurity band is metallic. We apply a recentl…