February 20th h. 11.30
multiple scattering theory for X-ray absorption
of strongly-correlated systems
We report a theoretical study
of Mn 2p photoemission spectra for Mn thin films adsorbed on Ag (001)
for which large satellites have recently been observed. Band structure
performed to determine
the ground state electronic structure. The band structure information
is then used to construct a realistic impurity model that includes full
atomic multiplet interaction and coupling to the Mn-3d and Ag-4d bands.
The model is applied to various Mn/Ag thin film structures, whereby only
the most relevant model parameter, the hybridisation strength, is varied
using a simple scaling law. Good agreement with experiment is obtained
for all systems.