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- Dey, J.Polish Acad Sci, Poland (author)
Helical magnetic structure of epitaxial films of nanolaminated Mn2GaC MAX phase
- Article/chapterEnglish2023
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- AMER PHYSICAL SOC,2023
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- LIBRIS-ID:oai:DiVA.org:liu-200098
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-200098URI
- https://doi.org/10.1103/PhysRevB.108.054413DOI
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- Language:English
- Summary in:English
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- Funding Agencies|National Science Center, Poland [UMO-2019/35/B/ST3/03676]; Swedish Research Council [2019-04233]; Goeran Gustafsson Foundation for Research in Natural Sciences and Medicine; Deutsche Forschungsgemeinschaft [405553726]
- Nanolaminated Mn2GaC epitaxial films crystallizing in the hexagonal structure belong to the family of MAX phase compounds and display complex magnetic interactions. While the critical temperature of the order-disorder transition is 507 K, at around 214 K this compound undergoes a first-order phase transition with the magnetic structure below the transition point not being fully resolved. Previous studies indicated a noncollinear spin arrangement, but a specific magnetic structure could not be defined. In this work we present the results of 69Ga, 71Ga, and 55Mn NMR experiments performed at 4.2 K in an external in-plane magnetic field up to 1 T. The in-depth analysis of the experimental results shows a helical magnetic structure consisting of the ferromagnetically coupled Mn-C-Mn slabs that are twisted across the Ga layer by 167.2 degrees with respect to the next Mn-C-Mn slab. As a result, the magnetic structure presents a spiral propagating along the out-of-plane direction (hexagonal c axis) with a pitch of around 14 lattice constants.
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- Jedryka, E.Polish Acad Sci, Poland (author)
- Kalvig, R.Polish Acad Sci, Poland (author)
- Wiedwald, U.Univ Duisburg Essen, Germany; Univ Duisburg Essen, Germany (author)
- Farle, M.Univ Duisburg Essen, Germany; Univ Duisburg Essen, Germany (author)
- Rosén, JohannaLinköpings universitet,Materialdesign,Tekniska fakulteten(Swepub:liu)johro07 (author)
- Wojcik, M.Polish Acad Sci, Poland (author)
- Polish Acad Sci, PolandUniv Duisburg Essen, Germany; Univ Duisburg Essen, Germany (creator_code:org_t)
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- In:Physical Review B: AMER PHYSICAL SOC108:52469-99502469-9969
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