@article {221, title = {Compositional tuning of ultrathin surface oxides on metal and alloysubstrates using photons: Dynamic simulations and experiments}, journal = {Phys. Rev. B}, volume = {81}, year = {2010}, pages = {085406}, author = {C.L. Chang and S.K.R.S. Sankaranarayanan and D. Ruzmetov and M.H. Engelhard and E. Kaxiras and S. Ramanathan} }