Tuning the spin texture in binary and ternary surface alloys on Ag(111)

Christian R. Ast; Fabian Meier; Isabella Gierz; J. Hugo Dil; Klaus Kern

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Tuning the spin texture in binary and ternary surface alloys on Ag(111)

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arxiv 1011.1829 v1 pith:WR2PFECP submitted 2010-11-08 cond-mat.mtrl-sci

Tuning the spin texture in binary and ternary surface alloys on Ag(111)

Isabella Gierz , Fabian Meier , J. Hugo Dil , Klaus Kern , Christian R. Ast This is my paper

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Recently, a giant spin splitting has been observed in surface alloys on noble metal (111) surfaces as a result of a strong structural modification at the surface as well as the large atomic spin-orbit interaction (SOI) of the alloy atoms. These surface alloys are an ideal playground to manipulate both the size of the spin splitting as well as the position of the Fermi level as it is possible to change the atomic SOI as well as the relaxation by varying alloy atoms and substrates. Using spin- and angle-resolved photoemission spectroscopy in combination with quantitative low energy electron diffraction we have studied the mixed binary Bi(x)Sb(1-x)/Ag(111) and the mixed ternary Bi(x)Pb(y)Sb(1-x-y)/Ag(111) surface alloys where we observed a continuous evolution of the band structure with x and y.

Tuning the spin texture in binary and ternary surface alloys on Ag(111)

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