Helical magnetism in Sr-doped CaMn7O12 films
Noncollinear magnetism can play an important role in multiferroic materials but is relatively understudied in oxide heterostructures compared to their bulk counterparts. Using variable temperature magnetometry and neutron diffraction, we demonstrate the presence of helical magnetic ordering in CaMn7...
| Hauptverfasser: | , , , , , , , , , , , , , , , |
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| Format: | Journal article |
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American Physical Society
2018
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| _version_ | 1826267165496442880 |
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| author | Huon, A Vibhakar, AM Grutter, AJ Borchers, JA Disseler, S Liu, Y Tian, W Orlandi, F Manuel, P Khalyavin, DD Sharma, Y Herklotz, A Lee, HN Fitzsimmons, MR Johnson, RD May, SJ |
| author_facet | Huon, A Vibhakar, AM Grutter, AJ Borchers, JA Disseler, S Liu, Y Tian, W Orlandi, F Manuel, P Khalyavin, DD Sharma, Y Herklotz, A Lee, HN Fitzsimmons, MR Johnson, RD May, SJ |
| author_sort | Huon, A |
| collection | OXFORD |
| description | Noncollinear magnetism can play an important role in multiferroic materials but is relatively understudied in oxide heterostructures compared to their bulk counterparts. Using variable temperature magnetometry and neutron diffraction, we demonstrate the presence of helical magnetic ordering in CaMn7O12 and Ca1−xSrxMn7O12 (for x up to 0.51) thin films. Consistent with bulk Ca1−xSrxMn7O12, the net magnetization increases with Sr doping. Neutron diffraction confirms that the helical magnetic structure remains incommensurate at all values of x, while the fundamental magnetic wavevector increases upon Sr substitution. This result demonstrates a chemical-based approach for tuning helical magnetism in quadruple perovskite films and enables future studies of strain and interfacial effects on helimagnetism in oxide heterostructures. |
| first_indexed | 2024-03-06T20:50:02Z |
| format | Journal article |
| id | oxford-uuid:3741af9a-1c11-4b2f-98a0-155a027fd7cc |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:50:02Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:3741af9a-1c11-4b2f-98a0-155a027fd7cc2022-03-26T13:43:01ZHelical magnetism in Sr-doped CaMn7O12 filmsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3741af9a-1c11-4b2f-98a0-155a027fd7ccSymplectic Elements at OxfordAmerican Physical Society2018Huon, AVibhakar, AMGrutter, AJBorchers, JADisseler, SLiu, YTian, WOrlandi, FManuel, PKhalyavin, DDSharma, YHerklotz, ALee, HNFitzsimmons, MRJohnson, RDMay, SJNoncollinear magnetism can play an important role in multiferroic materials but is relatively understudied in oxide heterostructures compared to their bulk counterparts. Using variable temperature magnetometry and neutron diffraction, we demonstrate the presence of helical magnetic ordering in CaMn7O12 and Ca1−xSrxMn7O12 (for x up to 0.51) thin films. Consistent with bulk Ca1−xSrxMn7O12, the net magnetization increases with Sr doping. Neutron diffraction confirms that the helical magnetic structure remains incommensurate at all values of x, while the fundamental magnetic wavevector increases upon Sr substitution. This result demonstrates a chemical-based approach for tuning helical magnetism in quadruple perovskite films and enables future studies of strain and interfacial effects on helimagnetism in oxide heterostructures. |
| spellingShingle | Huon, A Vibhakar, AM Grutter, AJ Borchers, JA Disseler, S Liu, Y Tian, W Orlandi, F Manuel, P Khalyavin, DD Sharma, Y Herklotz, A Lee, HN Fitzsimmons, MR Johnson, RD May, SJ Helical magnetism in Sr-doped CaMn7O12 films |
| title | Helical magnetism in Sr-doped CaMn7O12 films |
| title_full | Helical magnetism in Sr-doped CaMn7O12 films |
| title_fullStr | Helical magnetism in Sr-doped CaMn7O12 films |
| title_full_unstemmed | Helical magnetism in Sr-doped CaMn7O12 films |
| title_short | Helical magnetism in Sr-doped CaMn7O12 films |
| title_sort | helical magnetism in sr doped camn7o12 films |
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