Journal article
Helical magnetism in Sr-doped CaMn7O12 films
Physical review. B, v 98(22)
19 Dec 2018
Abstract
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.
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Details
- Title
- Helical magnetism in Sr-doped CaMn7O12 films
- Creators
- Amanda Huon - Drexel UniversityAnuradha M. Vibhakar - University of OxfordAlexander J. Grutter - NIST Center for Neutron ResearchJulie A. Borchers - NIST Center for Neutron ResearchSteven Disseler - NIST Center for Neutron ResearchYaohua Liu - Oak Ridge National LaboratoryWei Tian - Oak Ridge National LaboratoryFabio Orlandi - Rutherford Appleton LaboratoryPascal Manuel - Rutherford Appleton LaboratoryDmitry D. Khalyavin - Rutherford Appleton LaboratoryYogesh Sharma - Oak Ridge National LaboratoryAndreas Herklotz - Oak Ridge National LaboratoryHo Nyung Lee - Oak Ridge National LaboratoryMichael R. Fitzsimmons - University of Tennessee at KnoxvilleRoger D. Johnson - University of OxfordSteven J. May - Drexel University
- Publication Details
- Physical review. B, v 98(22)
- Publisher
- Amer Physical Soc
- Number of pages
- 8
- Grant note
- W911NF-15-1-0133 / Army Research Office U.S. DOE, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division Royal Society Research Fellowship; Royal Society of London U.S. Department of Energy (DOE), Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program DE-SC0014664 / DOE; United States Department of Energy (DOE) 1947207 / EPSRC; UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000454161900005
- Scopus ID
- 2-s2.0-85058959016
- Other Identifier
- 991019167661304721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Applied
- Physics, Condensed Matter