E1 and E2 contributions to the L3 resonance line shape in antiferromagnetic holmium

Details E1 and E2 contributions to the L3 resonance line shape in antiferromagnetic holmium E1 and E2 contributions to the L3 resonance line shape in antiferromagnetic holmium

2009-08-18

arxiv.org/abs/0908.2504v1

Physics

Condensed Matter

Other Condensed Matter

16 pages, 8 figures, 5 tables

Scientific paper

A detailed study of the angular, energy and polarization dependences of the electric dipolar (E1: 2p->5d) and quadrupolar (E2: 2p->4f) contributions to the x-ray scattering cross-section is presented for holmium in its basal plane spiral antiferromagnetic phase at the L3 edge. The corresponding E1 and E2 scattering factors have been extracted from fits to the experimental energy line shapes taking into account for the first time a split dipole resonance. Using the imaginary part of the resonant scattering factors to retrieve the XMCD spectrum, we find qualitative agreement with the dichroic spectrum measured in transmission through a holmium foil.

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