Large magnetic circular dichroism in resonant inelastic x-ray scattering at the Mn L-edge of Mn-Zn ferrite
2006 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 74, no 172409Article in journal (Refereed) Published
Wereport resonant inelastic x-ray scattering (RIXS) excited by circularly polarizedx rays on Mn-Zn ferrite at the Mn L2,3 resonances.We demonstrate that crystal-field excitations, as expected for localized systems,dominate the RIXS spectra and thus their dichroic asymmetry cannotbe interpreted in terms of spin-resolved partial density of states,which has been the standard approach for RIXS dichroism. Weobserve large dichroic RIXS at the L2 resonance which weattribute to the absence of metallic core hole screening inthe insulating Mn ferrite. On the other hand, reduced L3-RIXSdichroism is interpreted as an effect of longer scattering timethat enables spin-lattice core hole relaxation via magnons and phononsoccurring on a femtosecond time scale.
Place, publisher, year, edition, pages
2006. Vol. 74, no 172409
magnetic circular dichroism, X-ray scattering, manganese compounds, zinc compounds, spin-lattice relaxation, phonon-magnon interactions
IdentifiersURN: urn:nbn:se:liu:diva-17403DOI: 10.1103/PhysRevB.74.172409OAI: oai:DiVA.org:liu-17403DiVA: diva2:209002
Original Publication:Martin Magnuson, L.-C. Duda, S. M. Butorin, P. Kuiper and J. Nordgren, Large magnetic circular dichroism in resonant inelastic x-ray scattering at the Mn L-edge of Mn-Zn ferrite, 2006, Physical Review B. Condensed Matter and Materials Physics, (74), 172409.http://dx.doi.org/10.1103/PhysRevB.74.172409Copyright: American Physical Societyhttp://www.aps.org/2009-03-232009-03-232013-10-02Bibliographically approved