| Author | dc.contributor.author | Núñez Vásquez, Álvaro | |
| Author | dc.contributor.author | Fernández Rossier, J. | es_CL |
| Admission date | dc.date.accessioned | 2012-05-10T21:03:39Z | |
| Available date | dc.date.available | 2012-05-10T21:03:39Z | |
| Publication date | dc.date.issued | 2010 | |
| Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/125588 | |
| Abstract | dc.description.abstract | We consider dilute magnetic doping in the surface of a three dimensional topological insulator
where a two dimensional Dirac electron gas resides. We find that exchange coupling between magnetic
atoms and the Dirac electrons has a strong and peculiar effect on both. First, the exchangeinduced
single ion magnetic anisotropy is very large and favors off-plane orientation. In the case of
ferromagnetically ordered phase we find a colossal magnetic anisotropy energy, of the order of the
critical temperature. Second, a persistent electronic current circulates around the magnetic atom
and, in the case of a ferromagnetic phase, around the edges of the surface. | es_CL |
| Patrocinador | dc.description.sponsorship | This work has been financially supported by MECSpain
(Grant Nos. MAT07-67845 and CONSOLIDER
CSD2007-0010), by Proyecto de Iniciación en Investigación Fondecyt 11070008 and by Núcleo Científico Milenio
“Magnetismo Básico y/o Aplicado” P06022-F. ASN
acknowledges funding from Universidad de Alicante. | es_CL |
| Lenguage | dc.language.iso | en | es_CL |
| Título | dc.title | Colossal anisotropy in diluted magnetic topological insulators | es_CL |
| Document type | dc.type | Artículo de revista | |
