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DPG

Berlin 2001 – scientific programme

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A: Atomphysik

A 5: Posters Tuesday (Photoionisation, Multi Photon Processes)

A 5.7: Poster

Tuesday, April 3, 2001, 12:30–15:00, AT3

Absorption of Circularly Polarized VUV Radiation in Polarized Iron Vapor — •Georg Prümper1, Oliver Geßner1, Björn Zimmermann1, Jens Viefhaus1, Rainer Hentges1, Hans Kleinpoppen1,2, and Uwe Becker11Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany — 2University of Stirling, Scotland, UK

The effect of magnetic dichroism in the total ion yield of iron i.e. in the absorption of polarized iron vapor was observed for the first time far beyond the ionization threshold or autoionizing resonances. These observations can be explained by the orientation of orbital angular momentum of the 3d-electrons. This effect has not yet been observed in absorption measurements of magnetized iron films due to the smallness of the expectation value of the orbital angular momentum in the solid target. The explanation of the details of this dynamical behavior go beyond the single electron approximation.

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