Origin and manipulation of the Rashba splitting in surface alloys H. Bentmann, F. Forster, G. Bihlmayer, E. V. Chulkov, L. Moreschini, M. Grioni and F. Reinert EPL, 87 3 (2009) 37003 Published online: 28 August 2009 DOI: 10.1209/0295-5075/87/37003