First-principles calculations: half-metallic Au-V(Cr) quantum wires as spin filters.
Nanotechnology
; 20(9): 095201, 2009 Mar 04.
Article
em En
| MEDLINE
| ID: mdl-19417479
ABSTRACT
The half-metallic behavior of Au-V(Cr) quantum wires adsorbed on an armchair (5, 5) boron nitride nanotube is obtained by performing spin-polarized density functional calculations. The density of states shows a metallic property at the Fermi level for the majority spin channel and a semiconductor gap in the minority spin channel. The half-metallic behavior of the quantum wire/nanotube complex originates from the half-metallic behavior of the free-standing Au-V(Cr) quantum wires. The calculations of spin-polarized transport indicate that such a one-dimensional half-metallic magnet can be used as a spin filter.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Marcadores de Spin
/
Compostos de Boro
/
Cromo
/
Nanoestruturas
/
Ouro
/
Magnetismo
/
Modelos Químicos
Idioma:
En
Revista:
Nanotechnology
Ano de publicação:
2009
Tipo de documento:
Article