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research article
Assessing the atomic contribution to the Rashba spin-orbit splitting in surface alloys: Sb/Ag(111)
2009
We have studied the electronic structure of the Ag(111)(root 3x root 3)R30 degrees-Sb surface alloy by angle-resolved photoemission. We find two hybrid surface bands, similar to the isostructural Ag(111)-Bi interface. The spin-orbit coupling induced spin splitting in momentum space, however, is strongly reduced from the Bi case. First-principles and model band calculations correctly reproduce this difference. The present results illustrate the complex interplay of atomic and structural contributions at the origin of the large spin separation in these systems.
Type
research article
Web of Science ID
WOS:000263815800104
Authors
•
Bendounan, A.
•
Gierz, I.
•
Ast, C. R.
•
Mirhosseini, H.
•
Hoechst, H.
•
Kern, K.
•
Henk, J.
•
Ernst, A.
•
Ostanin, S.
Publication date
2009
Published in
Volume
79
Article Number
075424
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 1, 2010
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