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Large spin splitting of surface state bands of Au/Si(111) surface

AuthorsVyalikh, Denis V.; Eremeev, S. V.; Chulkov, Eugene V. ; Saranin, A. A.
Issue Date2013
PublisherTrans Tech Publications
AbstractFinding appropriate systems with a large spin splitting of metallic surface-state band which can be fabricated on silicon using routine technique is an essential step in combining Rashba-effect based spintronics with silicon technology. We have found that originally poor structural and electronic properties of the Au/Si(111)√3×√3 surface can be substantially improved by adsorbing small amounts of suitable species (e.g., Tl, In, Na, Cs). The resultant surfaces exhibit a highly-ordered atomic structure and spin-split metallic surface-state band with a momentum splitting of up to 0.052 Å-1 and an energy splitting of up to 190 meV at the Fermi level. The family of adsorbate-modified Au/Si(111)√3×√3 surfaces, on the one hand, is thought to be a fascinating playground for exploring spin-splitting effects in the metal monolayers on a semiconductor and, on the other hand, expands greatly the list of material systems prospective for spintronics applications.
DescriptionTrabajo presentado al "Trends in MAGnetism" celebrado en Vladivostok (Rusia) del 15 al 21 de Septiembre de 2013.-- et al.
Publisher version (URL)http://eastmag.wl.dvfu.ru/geninfo.html
Appears in Collections:(CFM) Libros y partes de libros
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