We describe the occurrence of a spin-polarized ferromagnetic state on the surface of a topological insulator with implanted 3d transition-metal atoms, within a model which takes into account the hybridization between the (s, p) orbitals of the insulator and the d orbitals of the metal, entailing the delocalized character of magnetic moments. Depending on the position of the Fermi level, the energy spectrum of this state displays both metallic and semimetallic, or semiconducting characteristics.
Spin-polarized states of matter on the surface of a three-dimensional topological insulator with implanted magnetic atoms / Caprara, Sergio; V. V., Tugushev; P. M., Echenique; E. V., Chulkov. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 85:12(2012), pp. 121304(R)-1-121304(R)-5. [10.1103/physrevb.85.121304]
Spin-polarized states of matter on the surface of a three-dimensional topological insulator with implanted magnetic atoms
CAPRARA, SERGIO;
2012
Abstract
We describe the occurrence of a spin-polarized ferromagnetic state on the surface of a topological insulator with implanted 3d transition-metal atoms, within a model which takes into account the hybridization between the (s, p) orbitals of the insulator and the d orbitals of the metal, entailing the delocalized character of magnetic moments. Depending on the position of the Fermi level, the energy spectrum of this state displays both metallic and semimetallic, or semiconducting characteristics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
