Use of polarization analysis in the understanding of resonant magnetic x-ray scattering at the L2,3 edges of rare earths

Anne Stunault; Christian Vettier; Nick Bernhoeft; Francois de Bergevin; C. Dufour; K. Dumesnil

doi:10.1117/12.370102

16 November 1999 Use of polarization analysis in the understanding of resonant magnetic x-ray scattering at the L₂,₃ edges of rare earths

Anne Stunault, Christian Vettier, Nick Bernhoeft, Francois de Bergevin, C. Dufour, K. Dumesnil

Author Affiliations +

Proceedings Volume 3773, X-Ray Optics Design, Performance, and Applications; (1999) https://doi.org/10.1117/12.370102
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

The concomitant development of new x-ray sources, new dedicated instruments and of the theory of resonant X-ray magnetic scattering (RXMS) has opened a permanently developing range of new experiments, where one takes advantage of the coupling of the x-ray beam polarization with the magnetic moments. In rare earths, RXMS allows one to study separately the contributions of the 4f and 5d electrons to the magnetism. We present a preliminary study on samarium and dysprosium and show that qualitative considerations on the energy dependencies of magnetic intensities (peak intensities at magnetic Bragg positions) allows clear identification of the two contributions to the resonance. The energy lineshapes of the resonances are discussed in terms of the introduction of collective effects (band structure of the 5d level) into the single-ion model of the resonance.

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Anne Stunault, Christian Vettier, Nick Bernhoeft, Francois de Bergevin, C. Dufour, and K. Dumesnil "Use of polarization analysis in the understanding of resonant magnetic x-ray scattering at the L₂,₃ edges of rare earths", Proc. SPIE 3773, X-Ray Optics Design, Performance, and Applications, (16 November 1999); https://doi.org/10.1117/12.370102

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