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Quantitative magnetic information from reciprocal space maps in Transmission Electron Microscopy
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SYSNO ASEP 0340584 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Quantitative magnetic information from reciprocal space maps in Transmission Electron Microscopy Author(s) Lidbaum, H. (SE)
Rusz, Ján (FZU-D)
Liebig, A. (SE)
Hjörvarsson, B. (SE)
Oppeneer, P.M. (SE)
Coronel, E. (SE)
Eriksson, O. (SE)
Leifer, K. (SE)Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 102, č. 3 (2009), 037201/1-037201/4Number of pages 4 s. Language eng - English Country US - United States Keywords transmission electron microscope ; dichroism ; sum rules ; magnetic moment ; EMCD ; ELNES Subject RIV BM - Solid Matter Physics ; Magnetism CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000262723700058 DOI 10.1103/PhysRevLett.102.037201 Annotation One of the most challenging issues in the characterization of magnetic materials is to obtain a quantitative analysis on the nanometer scale. Here we describe how electron magnetic circular dichroism (EMCD) measurements using the transmission electron microscope can be used for that purpose, utilizing reciprocal space maps. Applying the EMCD sum rules, an orbital to spin moment ratio of mL/mS=0.08±0.01 is obtained for Fe, which is consistent with the commonly accepted value. Hence, we establish EMCD as a quantitative element-specific technique for magnetic studies, using a widely available instrument with superior spatial resolution. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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