Berlin 2001 – scientific programme
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MO: Molekülphysik
MO 13: Photoionisation II (joint session A and MO)
MO 13.8: Talk
Friday, April 6, 2001, 17:30–17:45, H1012
Multiple Scattering Effects in the Core Photoionizations of Small Fixed-In-Space Molecules — •Daniel Rolles1,2, Ricardo Diez Muino2,3, F.J. Garcia de Abajo2,4, Charles S. Fadley2,5, and Michel A. Van Hove2,5 — 1Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany — 2Lawrence Berkeley National Laboratory, California, USA — 3Donostia International Physics Center, San Sebastian, Spain — 4Centro Mixto CSIC-UPV/EHU, San Sebastian, Spain — 5University of California at Davis, California, USA
A new method which includes non-spherical potentials in multiple scattering calculations is presented [1] and a critical comparison between theory and experiment for N_2 and CO:1s photoionization is shown. Especially for energies up to 50 eV above threshold, the results of the new calculations differ substantially from the conventional MS-calculations [2] and show a much better agreement with experimental data for photoelectron angular distributions from fixed-in-space molecules.
[1] R. Diez Muino, D. Rolles et al., J. of Electr. Spectr. and Relat. Phenom. (2000), in print
[2] e.g. D. Dill, J. Siegel, J.L. Dehmer, J. Chem. Phys. 6 (1976) 3158
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