| Hauptseite > Publikationsdatenbank > Direct observation of spin splitting in bismuth surface states |
| Journal Article | PreJuSER-58492 |
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2007
APS
College Park, Md.
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Please use a persistent id in citations: http://hdl.handle.net/2128/7731 doi:10.1103/PhysRevB.76.153305
Abstract: The electronic structure of ultrathin Bi(001) films on Si(111)-7x7 was studied by spin and angle-resolved photoemission spectroscopy. We directly observed a clear momentum-dependent spin splitting and polarization of the surface-state bands. The spin structure was antisymmetric with respect to the (Gamma) over bar point as predicted by theory, and the obtained in-plane spin polarization was as high as +/- 0.5. The qualitative features of the observed spin polarization are discussed in comparison with the spin-polarized band structure obtained by first-principles calculations.
Keyword(s): J
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