Rashba effect at the surfaces of rare-earth metals and their monoxides

Details Rashba effect at the surfaces of rare-earth metals and their monoxides Rashba effect at the surfaces of rare-earth metals and their monoxides

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11a3035k&link_type=abstract

New Journal of Physics, Volume 11, Issue 1, pp. 013035 (2009).

Physics

4

Scientific paper

We present a systematic study of the Rashba-type spin-orbit interaction at the (0001) surfaces of rare-earth metals and their surface monoxides, specifically of Tb metal and the O/Tb, O/Lu and O/Y surfaces. By means of photoemission experiments and ab initio band-structure calculations, we uncover the influence of this interaction on the surface electronic structure. In turn, the dramatic impact of the charge-density distribution of the surface/interface states on the strength of the Rashba-type spin splitting is demonstrated. We discuss the Rashba effect at magnetic and non-magnetic rare-earth surfaces, and compare with cases where it is negligible. The difference between the Rashba effect and magnetic linear dichroism in photoemission is pointed out to help avoid possible confusion in connection with the simultaneous appearance of these two effects at a magnetic surface.

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