Presentation
Quadrupolar and dipolar contributions to x-ray magnetic circular dichroism at the Tb L3,2 edges: Experiment versus theory
Ames Laboratory Conference Papers, Posters, and Presentations
Document Type
Conference Proceeding
Disciplines
Conference
46th Annual Conference on Magnetism and Magnetic Materials
Publication Date
5-15-2002
DOI
10.1063/1.1450792
Geolocation
(47.6062095, -122.3320708)
Abstract
We investigate the x-ray magnetic circular dichroism (XMCD) at the L3,2 edges using a single crystal of Tb as a prototype system for a one-element magnet in order to ascertain the multipolar nature of the features in the dichroic spectra. The high resolution of the experimental data allows for a clear identification of the dipolar (E1: 2p→5d) and quadrupolar (E2: 2p→4f) transitions. On the basis of ab initio calculations we developed a simple procedure to extract the quadrupolar part by subtracting the derivative of the spin-averaged absorption spectra from the experimental XMCD data. The deconvolution has to be carried out before applying sum rules to determine 4f and 5d moments.
Copyright Owner
American Institute of Physics
Copyright Date
2002
Language
en
Citation Information
H. Wende, Z. Li, A. Scherz, G. Ceballos, et al.. "Quadrupolar and dipolar contributions to x-ray magnetic circular dichroism at the Tb L3,2 edges: Experiment versus theory" Seattle, WA(2002) Available at: http://works.bepress.com/thomas_lograsso/135/
Copyright 2002 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The following article appeared in Journal of Applied Physics 91 (2002): 7361 and may be found at http://dx.doi.org/10.1063/1.1450792.