liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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
Non-collinear magnetic structure of the MAX phase Mn2GaC epitaxial films inferred from zero-field NMR study (CE-5:L05)
Polish Acad Sci, Poland.
Polish Acad Sci, Poland.
Polish Acad Sci, Poland.
Polish Acad Sci, Poland.
Show others and affiliations
2023 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 49, no 14, p. 24235-24238Article in journal (Refereed) Published
Abstract [en]

Zero-field NMR investigations on the 69Ga, 71Ga, and 55Mn nuclei have been performed at 4.2 K on a 100 nm thick epitaxial Mn2GaC(0001) MAX phase film grown on a MgO(111) substrate. This nano-laminated structure consists of ferromagnetic Mn-C-Mn stacks interleaved with monolayers of gallium. A resolved quadrupolar structure of the observed gallium resonances is a fingerprint of a well-defined crystal field confirming high crystal quality. The nuclei of non-magnetic gallium atoms are shown to experience the transferred hyperfine magnetic field of 15.75 T (& PLUSMN;0.05 T), which is due to polarization of their 4s electron shell by the magnetic moments of manganese neighbors, evidencing the presence of an uncompensated ferromagnetic moment within the manganese sublattice. The average magnetic moment of manganese was found to be around 2 & mu;B, strongly contrasting with the reported remnant magnetization of only 0.3 & mu;B. Moreover, the 55Mn NMR spectrum in-dicates the presence of magnetically non-equivalent manganese sites within this structure. The observed features of the 69,71Ga and 55Mn NMR spectra cannot be reconciled with any of the hitherto proposed collinear ar-rangements of manganese moments and suggest their non-collinear arrangement across a gallium layer. Nevertheless a more advanced study is required to elucidate the detailed nature of magnetic structure in this material.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2023. Vol. 49, no 14, p. 24235-24238
Keywords [en]
Films; Spectroscopy; Magnetic properties; Carbides
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-196842DOI: 10.1016/j.ceramint.2022.11.265ISI: 001019386200001OAI: oai:DiVA.org:liu-196842DiVA, id: diva2:1791135
Note

Funding Agencies|National Science Center, Poland [UMO-2019/35/B/ST3/03676]; Deutsche Forschungsgemeinschaft [CRC/TRR 270, 405553726]; Knut and Alice Wallenberg (KAW) Foundation

Available from: 2023-08-24 Created: 2023-08-24 Last updated: 2023-08-24

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Search in DiVA

By author/editor
Rosén, Johanna
By organisation
Thin Film PhysicsFaculty of Science & Engineering
In the same journal
Ceramics International
Inorganic Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 28 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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