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  Magnetic Contrast at Spin-Flip Excitations: An Advanced X-Ray Spectroscopy Tool to Study Magnetic-Ordering

Elnaggar, H., Wang, R.-P., Lafuerza, S., Paris, E., Tseng, Y., McNally, D., et al. (2019). Magnetic Contrast at Spin-Flip Excitations: An Advanced X-Ray Spectroscopy Tool to Study Magnetic-Ordering. ACS Applied Materials and Interfaces, 36213-36220. doi:10.1021/acsami.9b10196.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-DAAB-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-DB86-E
Genre: Journal Article

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 Creators:
Elnaggar, Hebatalla1, Author
Wang, Ru-Pan1, Author
Lafuerza, Sara1, Author
Paris, Eugenio1, Author
Tseng, Yi1, Author
McNally, Daniel1, Author
Komarek, Alexander2, Author              
Haverkort, Maurits1, Author
Sikora, Marcin1, Author
Schmitt, Thorsten1, Author
de Groot, Frank M. F. 1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Alexander Komarek, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863446              

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Free keywords: Dichroism; Magnetic moments; Magnetite; Mapping; Textures; X ray spectroscopy, Antiferro-magnetically coupled; Mixed valence systems; Polarization dependence; Resonant inelastic x-ray scattering; Spin excitation; Spin flip; Spin state; Technological applications, X ray scattering
 Abstract: The determination of the local orientation and magnitude of the magnetization in spin textures plays a pivotal role in understanding and harnessing magnetic properties for technological applications. Here, we show that by employing the polarization dependence of resonant inelastic X-ray scattering (RIXS), we can directly probe the spin ordering with chemical and site selectivity. Applied on the prototypical ferrimagnetic mixed-valence system, magnetite ([Fe3+]_A[Fe3+,Fe2+]BO4), we can distinguish spin-flip excitations at the A and B antiferromagnetically coupled Fe3+ sublattices and quantify the exchange field. Furthermore, it is possible to determine the orbital contribution to the magnetic moment from detailed angular dependence measurements. RIXS dichroism measurements performed at spin-flip excitations with nanometer spatial resolution will offer a powerful mapping contrast suitable for the characterization of magnetic ordering at interfaces and engineered spin textures. Copyright © 2019 American Chemical Society.

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Language(s): eng - English
 Dates: 2019-09-092019-09-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1021/acsami.9b10196
BibTex Citekey: Elnaggar2019
 Degree: -

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Title: ACS Applied Materials and Interfaces
  Abbreviation : ACS Appl. Mater. Interfaces
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 36213 - 36220 Identifier: ISSN: 1944-8244
CoNE: https://pure.mpg.de/cone/journals/resource/1944-8244