Dresden 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
O: Fachverband Oberflächenphysik
O 93: Electronic structure of surfaces: Spectroscopy, surface states III
O 93.6: Talk
Friday, March 13, 2026, 10:45–11:00, HSZ/0201
Surface Rashba effect influence on bulk states: test case on Au(111) — •Laurent Nicolaï1, Ján Minár1, Christine Richter2,3, Olivier Heckmann2,3, Laxman Nagi Redi2,3, Sourour Ayari1, Aki Pulkkinen1, Mauro Fanciulli2,3, and Karol Hricovini2,3 — 1University of West-Bohemia in Pilsen, Czeck Republic — 2CY Cergy Paris Université, France — 3Université Paris-Saclay, CEA, France
Au(111) crystals are commonly used in the Photo-emission Spectroscopy field to calibrate instruments. When coming to spin-resolved ARPES, one uses the well-known surface states, spin-split due to the Rashba effect [1,2], as a reference. Au(111) being a centro-symmetric material, it is commonly assumed that bulk sates are spin degenerate. However, we here present measurements attesting a spin polarisation of bulk states within the valence band. The measurements are complemented with ab-initio calculations confirming the existence of bulk states’ spin polarisation on a fundamental level.
[1] Yu A. Bychkov and E. I. Rashba, J. of Phys. C: Sol. St. Phys., 17:6039-6045, 1984 [2] S LaShell et al. , Phys. Rev. Lett. 77 3419, 1996
Keywords: spin polarisation; Rashba effect; fundamental effect; ground states; spectroscopy