Browsing by Subject "TIGHT-BINDING"

Now showing items 1-3 of 3

    • Coupling of electrons to the electromagnetic field in a localized basis 
      Allen, Roland E. (American Physical Society, 2008)
      A simple formula is obtained for coupling electrons in a complex system to the electromagnetic field. It includes the effect of intra-atomic excitations and nuclear motion, and can be applied in, e.g., first-principles-based ...
    • Ferromagnetic transition temperature enhancement in (Ga,Mn)As semiconductors by carbon codoping 
      Jungwirth, T.; Masek, J.; Sinova, Jairo; MacDonald, AH. (American Physical Society, 2003)
      We present a theoretical study of (Ga,Mn)(As,C) diluted magnetic semiconductors with high C acceptor density that combines insights from phenomenological model and microscopic approaches. A tight-binding coherent-potential ...
    • Low-temperature magnetization of (Ga,Mn) As semiconductors 
      Jungwirth, T.; Masek, J.; Wang, KY; Edmonds, KW; Sawicki, M.; Polini, M.; Sinova, Jairo; MacDonald, AH; Campion, RP; Zhao, LX; Farley, NRS; Johal, TK; van der Laan, G.; Foxon, CT; Gallagher, BL. (American Physical Society, 2006)
      We report on a comprehensive study of the ferromagnetic moment per Mn atom in (Ga,Mn)As ferromagnetic semiconductors. Theoretical discussion is based on microscopic calculations and on an effective model of Mn local moments ...