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The nano-microfibrous R11Ni4In9 intermetallics: New compounds and extraordinary anisotropy in Tb11Ni4In9 and Dy11Ni4In9

TitleThe nano-microfibrous R11Ni4In9 intermetallics: New compounds and extraordinary anisotropy in Tb11Ni4In9 and Dy11Ni4In9
Publication TypeJournal Article
Year of Publication2015
AuthorsProvino, A, Gschneidner, KA, Dhar, SK, Ferdeghini, C, Mudryk, Y, Manfrinetti, P, Paudyal, D, Pecharsky, VK
JournalActa Materialia
Volume91
Pagination128-140
Date Published06
Type of ArticleArticle
ISBN Number1359-6454
Accession NumberWOS:000354154400013
Keywordscompounds, crystal-structure, Ferrimagnetic ordering, Fiber, gd, lu, Magnetic shape anisotropy, magnetic-properties, nanowires, nd, Rare earth intermetallics, sm, tm
Abstract

ds (H-C = 6.6 T for Tb11Ni4In9 at 5K and H-C = 5.7 T for Dy11Ni4In9 at 2 K), is found when the fibers (and the c-axis) are oriented parallel to the magnetic field direction; antiferromagnetic-like ground state is observed with the fibers oriented orthogonal (i.e., in the a-b plane). Appearance of a Griffiths phase regime is observed in both compounds before entering the ordered magnetic states. This is more evident for fibers orthogonal to the magnetic field and is even preserved at 1 T. Field induced spin-flop magnetic transitions are also observed in Tb11Ni4In9 and Dy11Ni4In9 with fibers orthogonal and parallel to the field, respectively. First principles calculations have been performed for several representative compounds to explain the underlying phase stability and their magnetism. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

DOI10.1016/j.actamat.2015.03.003
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