Comment on “Rashba Spin-Orbit Coupling in Image Potential States”

Tognolini et al. Reply:

“…In conclusion, we reject the criticisms raised by Arafune et al [1] and we are firmly convinced that the measured dichroic signal is due to the Rashba splitting of the IPS, as theoretically predicted for metal surfaces with a significant spin-orbit coupling and as recently experimentally confirmed by the authors of the Comment [4].…”

“…In the second issue, Arafune et al [1] do not exclude that the observed circular dichroism could be assigned to an initial state effect. Two occupied surface states lie, in fact, below the Fermi level.…”

“…S. Tognolini, 1 S. Achilli, 2 L. Longetti, 3 E. Fava, 1 C. Mariani, 3 M. I. Trioni 2 and S. Pagliara 1…”