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Photoemission Tomography: Applications and Future Developments


07 Dec 2020
09 Dec 2020
Physikzentrum Bad Honnef

Angle-resolved ultraviolet photoemission spectroscopy is arguably the most direct method of addressing the (filled) electronic structure critical for the electronic and optical properties of matter.

The photoemission tomography technique, a combined experimental/theoretical approach based on interpretation of the photoelectron angular distribution in terms of a one-electron initial state, has been very useful in the characterizations of electronic properties of molecular films from sub-monolayers to multilayers. This includes the unambiguous assignment of emissions to particular molecular orbitals, their reconstruction to real space orbitals, the deconvolution of spectra into individual orbital contributions beyond the limits of energy resolution, the extraction of detailed geometric information, and the precise description of the charge balance and transfer at the interfaces.

Despite these successes, the theoretical description of the angular distribution of photoelectrons remains challenging and is – at the current level of theory – presently crude. Moreover, there has been significant progress in momentum space imaging photoemission spectrometers with extensions to the spin- and time-resolved domains, which make present models inadequate.

The seminar will bring together experts and young researchers interested in the application and the future developments of momentum space imaging of matter. The major aim of the seminar is to set photoemission tomography on a firm footing and to identify the directions for future theoretical and experimental investigations.

We thank the Wilhelm and Else Heraeus Stiftung for their financial and organisational support.

Organization Committee

F. Stefan Tautz, PGI-3, Forschungszentrum Jülich
Peter Puschnig, University of Graz
Mathias Richter, Physikalisch-Technische Bundesanstalt, Berlin
Sergey Subach, PGI-3, Forschungszentrum Jülich

Read more on the seminar website