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Regensburg 2004 – wissenschaftliches Programm

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O: Oberflächenphysik

O 12: Magnetismus in reduzierten Dimensionen

O 12.4: Vortrag

Montag, 8. März 2004, 16:30–16:45, H45

X-ray magnetic circular dichroism sum rule correction for the light transition metals — •Eberhard Goering — Max-Planck-Insitut für Metallforschung, 70569 Stuttgart

Quantum mechanical mixing of the L2 and L3 edge excitations strongly increases with reduced 2p spin-orbit-splitting. For a large number of 2p→3d absorption spectra the shape has been fitted nearly perfectly by a model, which takes into account lifetime and jj-mixing effects. X-ray magnetic circular dichroism (XMCD) sum rule correction factors have been determined for V and Cr, which are consistent to complementary investigations. This fitting procedure and the estimated correction factors are the basis for a future light element XMCD effective spin renormalization technique.

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