Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Single scan STEM-EMCD in 3-beam orientation using a quadruple aperture
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Inorganic and Structural Chemistry.ORCID iD: 0000-0001-7286-1211
Show others and affiliations
Number of Authors: 82023 (English)In: Ultramicroscopy, ISSN 0304-3991, E-ISSN 1879-2723, Vol. 251, article id 113760Article in journal (Refereed) Published
Abstract [en]

The need to acquire multiple angle-resolved electron energy loss spectra (EELS) is one of the several critical challenges associated with electron magnetic circular dichroism (EMCD) experiments. If the experiments are performed by scanning a nanometer to atomic-sized electron probe on a specific region of a sample, the precision of the local magnetic information extracted from such data highly depends on the accuracy of the spatial registration between multiple scans. For an EMCD experiment in a 3-beam orientation, this means that the same specimen area must be scanned four times while keeping all the experimental conditions same. This is a non-trivial task as there is a high chance of morphological and chemical modification as well as non-systematic local orientation variations of the crystal between the different scans due to beam damage, contamination and spatial drift. In this work, we employ a custom-made quadruple aperture to acquire the four EELS spectra needed for the EMCD analysis in a single electron beam scan, thus removing the above-mentioned complexities. We demonstrate a quantitative EMCD result for a beam convergence angle corresponding to sub-nm probe size and compare the EMCD results for different detector geometries.

Place, publisher, year, edition, pages
2023. Vol. 251, article id 113760
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:su:diva-221404DOI: 10.1016/j.ultramic.2023.113760ISI: 001016715300001PubMedID: 37285614Scopus ID: 2-s2.0-85161307125OAI: oai:DiVA.org:su-221404DiVA, id: diva2:1798851
Available from: 2023-09-20 Created: 2023-09-20 Last updated: 2024-01-30Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Authority records

Ali, HasanTai, Cheuk-WaiUusimaki, ToniThersleff, Thomas

Search in DiVA

By author/editor
Ali, HasanTai, Cheuk-WaiUusimaki, ToniThersleff, Thomas
By organisation
Department of Materials and Environmental Chemistry (MMK)Inorganic and Structural Chemistry
In the same journal
Ultramicroscopy
Other Engineering and Technologies

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 10 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf