Multiband Tight-Binding Model of Local Magnetism in Ga1-xMnxAs
Multiband Tight-Binding Model of Local Magnetism in Ga1-xMnxAs
We present the spin and orbitally resolved local density of states (LDOS) for a single Mn impurity and for two nearby Mn impurities in GaAs. The GaAs host is described by a sp(3) tight-binding Hamiltonian, and the Mn impurity is described by a local p-d hybridization and on-site potential. Local …