Reference : Neutron study of magnetic correlations in rare-earth-free Mn-Bi magnets
 Document type : Scientific journals : Article Discipline(s) : Physical, chemical, mathematical & earth Sciences : Physics Focus Areas : Physics and Materials Science To cite this reference: http://hdl.handle.net/10993/46626
 Title : Neutron study of magnetic correlations in rare-earth-free Mn-Bi magnets Language : English Author, co-author : Malyeyev, Artem [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)] Titov, Ivan [> >] Bender, Philipp [> >] Bersweiler, Mathias [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)] Pipich, Vitaliy [> >] Mühlbauer, Sebastian [> >] Ener, Semih [> >] Gutfleisch, Oliver [> >] Michels, Andreas [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)] Publication date : 1-Mar-2021 Journal title : Physical Review Materials Publisher : American Physical Society (APS) Volume : 5 Pages : 034407 Peer reviewed : Yes (verified by ORBilu) e-ISSN : 2475-9953 City : New York Country : NY Keywords : [en] Condensed Matter - Materials Science Abstract : [en] We report the results of an unpolarized small-angle neutron scattering (SANS) study on Mn-Bi-based rare-earth-free permanent magnets. The magnetic SANS cross section is dominated by long-wavelength transversal magnetization fluctuations and has been analyzed in terms of the Guinier-Porod model and the distance distribution function. This provides the radius of gyration which, in the remanent state, ranges between about $220-240 \, \mathrm{nm}$ for the three different alloy compositions investigated. Moreover, computation of the distance distribution function in conjunction with results for the so-called $s$-parameter obtained from the Guinier-Porod model indicate that the magnetic scattering of a Mn$_{45}$Bi$_{55}$ sample has its origin in slightly shape-anisotropic structures. Permalink : http://hdl.handle.net/10993/46626 DOI : 10.1103/PhysRevMaterials.5.034407 Other URL : https://ui.adsabs.harvard.edu/abs/2020arXiv201111446M

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
PhysRevMaterials.5.034407.pdfPublisher postprint2.56 MBRequest a copy

All documents in ORBilu are protected by a user license.