24 citations · 85 across the 15 of their papers we have counts for
Showing cond-mat.mtrl-sciShow all
3 papers · 1 filter
cond-mat.mtrl-sci2007★ 15 cited
The Crossover from Impurity to Valence Band in Diluted Magnetic Semiconductors: The Role of the Coulomb Attraction by Acceptor
F. Popescu, C. Şen, E. Dagotto +1
The crossover between an impurity band (IB) and a valence band (VB) regime as a function of the magnetic impurity concentration in models for diluted magnetic semiconductors (DMS)…
cond-mat.mtrl-sci2006★ 6 cited
Magnetic Instabilities and Phase Diagram of the Double-Exchange Model in Infinite Dimensions
R. S. Fishman, F. Popescu, G. Alvarez +3
Dynamical mean-field theory is used to study the magnetic instabilities and phase diagram of the double-exchange (DE) model with Hund's coupling J_H >0 in infinite dimensions. In a…
cond-mat.mtrl-sci2006★ 24 cited
Critical Temperatures of a Two-Band Model for Diluted Magnetic Semiconductors
F. Popescu, Y. Yildirim, G. Alvarez +2
Using Dynamical Mean Field Theory (DMFT) and Monte Carlo (MC) simulations, we study the ferromagnetic transition temperature Tc of a two-band model for Diluted Magnetic Semiconduct…