Abstract
We describe the occurrence of a spin-polarized ferromagnetic state on the surface of a topological insulator with implanted 3 transition-metal atoms, within a model which takes into account the hybridization between the orbitals of the insulator and the 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.
- Received 30 June 2011
DOI:https://doi.org/10.1103/PhysRevB.85.121304
©2012 American Physical Society
