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Influence of plural...
Influence of plural scattering on the quantitative determination of spin and orbital moments in electron magnetic chiral dichroism measurements
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- Rusz, Ján (author)
- Uppsala universitet,Materialteori
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- Lidbaum, Hans (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Rubino, Stefano (author)
- Uppsala universitet,Tillämpad materialvetenskap
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- Hjörvarsson, Björgvin (author)
- Uppsala universitet,Materialfysik
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- Oppeneer, Peter (author)
- Uppsala universitet,Materialteori
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- Eriksson, Olle (author)
- Uppsala universitet,Materialteori
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- Leifer, Klaus (author)
- Uppsala universitet,Tillämpad materialvetenskap
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(creator_code:org_t)
- 2011
- 2011
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 83:13, s. 132402-
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Recent quantitative measurements of the orbital to spin magnetic moment ratio m(L)/m(S) in electron magnetic circular dichroism (EMCD) experiments have given a m(L)/m(S) ratio that is larger than commonly accepted values. We demonstrate here that plural scattering may noticeably influence the m(L)/m(S) ratio. An equation is derived which describes its influence as a function of the spectral integrals of the plasmon scattering region and zero-loss peak. The influence of the electron-plasmon scattering can be removed when electron energy-loss spectra of the ionization edge are deconvoluted by the low-loss signal. For a bcc-Fe sample we obtain m(L)/m(S) = 0.04 after plasmon removal. We conclude that the plural scattering should be considered when extracting quantitative information from EMCD measurements.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- circular dichroism
- transmission electron microscopy
- density functional theory
- dynamical diffraction theory
- plural scattering
- multiple inelastic scattering
- Physics
- Fysik
- Magnetism
- Magnetism
- TECHNOLOGY
- TEKNIKVETENSKAP
- Engineering Science with specialization in Solid State Physics
- Teknisk fysik med inriktning mot fasta tillståndets fysik
- Teknisk fysik med inriktning mot materialvetenskap
- Engineering Science with specialization in Materials Science
Publication and Content Type
- ref (subject category)
- art (subject category)
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