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Reciprocal and real space maps for EMCD experiments
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SYSNO ASEP 0357422 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Reciprocal and real space maps for EMCD experiments Author(s) Lidbaum, H. (SE)
Rusz, Ján (FZU-D)
Rubino, S. (SE)
Liebig, A. (SE)
Hjörvarsson, B. (SE)
Oppeneer, P.M. (SE)
Eriksson, A. (SE)
Leifer, K. (SE)Source Title Ultramicroscopy. - : Elsevier - ISSN 0304-3991
Roč. 110, č. 11 (2010), s. 1380-1389Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords magnetic circular dichroism ; electron energy-loss spectra ; transmission electron microscopy Subject RIV BM - Solid Matter Physics ; Magnetism CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000282562100005 DOI 10.1016/j.ultramic.2010.07.004 Annotation Electron magnetic chiral dichroism (EMCD) is an emerging tool for quantitative measurements of magnetic properties using the transmission electron microscope (TEM), with the possibility of nanometer resolution. The geometrical conditions, data treatment and electron gun settings are found to influence the EMCD signal. In this article, particular care is taken to obtain a reliable quantitative measurement of the ratio of orbital to spin magnetic moment using energy filtered diffraction patterns. We describe a method for data treatment, normalization and selection of mirror axis. The experimental results are supported by theoretical simulations based on dynamical diffraction and density functional theory. Using special settings, we demonstrate the principle of acquiring real space maps of the EMCD signal. This enables advanced characterization of magnetic materials with superior spatial resolution. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2011
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