IFIR   05409
INSTITUTO DE FISICA DE ROSARIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Ferromagnetic Kondo lattice model with Rashba coupling: effects of antiferromagnetic coupling between localized spins.
Autor/es:
GIOVANY A. MEZA; JOSE A. RIERA
Lugar:
Buenos Aires
Reunión:
Conferencia; 27th International Conference on Low Temperature Physics; 2014
Institución organizadora:
International Union of Pure and Applied Physics
Resumen:
Motivated by emergent phenomena at oxide surfaces and interfaces
involving transition metal oxides, we examine the ferromagnetic Kondo
lattice model (FKLM) in the presence of a Rashba spin-orbit coupling
(RSOC) at zero temperature using numerical techniques. We find that the
main effect of the RSOC is the destruction of the ferromagnetic state
present in the FKLM at low electron fillings, with the consequent
suppression of conductivity. In addition, near half-filling the RSOC
leads to a departure of the antiferromagnetic state of the FKLM with a
consequent reduction to the intrinsic tendency to electronic phase
separation. A similar behavior is observed at very low electron density
in the presence of an antiferromagnetic coupling between localized
spins.