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Relativistic effects and fully spin-polarized Fermi surface at the Tl/Si(111) surface

AutorIbañez-Azpiroz, Julen; Eiguren, Asier; Bergara, Aitor
Fecha de publicación2011
EditorAmerican Physical Society
CitaciónPhysical Review B 84(12): 125435 (2011)
ResumenWe present a detailed analysis of the relativistic electronic structure and the momentum-dependent spin-polarization of the Tl/Si(111) surface. Our first-principle calculations reveal the existence of fully spin-polarized electron pockets associated to the huge spin-splitting of metallic surface bands. The calculated spin-polarization shows a very complex structure in the reciprocal space, strongly departing from simple theoretical model approximations. Interestingly, the electronic spin-state close to the Fermi surface is polarized along the surface perpendicular direction and reverses its orientation between different electron pockets. © 2011 American Physical Society.
URIhttp://hdl.handle.net/10261/50806
DOI10.1103/PhysRevB.84.125435
Identificadoresdoi: 10.1103/PhysRevB.84.125435
issn: 1098-0121
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