[Wien] Final state effects in photoemission

[Yushan Wang]

hi, my calculation shows we can not obtained something about final state
effect in photoabsorption. for example, I just got the lowest two peaks of
all the absorption spectra.

yushan wang

On Wed, 3 Dec 2003, Lukasz Plucinski wrote:

> Hello All,
>
> Is it possible to obtain information on final state effect in
> photoemission from WIEN2k calculations (shifts in binding energies)?
>
> Let me explain: intial state of photoemission is (in simplest view
> everybody is using) a ground state of the system, in WIEN2k this system is
> e.g. a slab. Final state of photoemission is the same slab but lacking one
> electron.
>
> The goal is to get initial state binding energies from the photoemission
> data. Its not trivial, maybe WIEN2k could help getting some estimations. I
> am talking about core levels, in valence band 'screening of the photohole
> is almost perfect and therefore the final state energy equals the initial
> state one-electron energy' (Huefner 'Photoelectron Spectroscopy',
> Springer, 1996).
>
> Please comment - and possibly give some hint...
>
> Regards,
>
> Lukasz
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