Topological surface states with persistent high spin polarization across the Dirac point in Bi2Te2Se and Bi2Se2Te.
Phys Rev Lett
; 109(16): 166802, 2012 Oct 19.
Article
em En
| MEDLINE
| ID: mdl-23215110
ABSTRACT
Helical spin textures with marked spin polarizations of topological surface states have been unveiled for the first time by state-of-the-art spin- and angle-resolved photoemission spectroscopy for two promising topological insulators, Bi(2)Te(2)Se and Bi(2)Se(2)Te. Their highly spin-polarized natures are found to be persistent across the Dirac point in both compounds. This novel finding paves a pathway to extending the utilization of topological surface states of these compounds for future spintronic applications.
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Japão