Original title: Nanopowders of R.sub.2./sub.Fe.sub.14./sub.B-type compounds in high magnetic fields: The effects of substitutional and interstitial atoms on inter-sublattice exchange interaction
Authors: Paukov, M. ; Ivanov, L. ; Tereshina, I. ; Tereshina-Chitrova, Evgenia ; Gorbunov, D. ; Andreev, A. V. ; Pyatakov, A.P. ; Granovsky, S.A. ; Doerr, M. ; Drulis, H.
Document type: Papers
Conference/Event: METAL 2020 - International Conference on Metallurgy and Materials /29./, Brno (CZ), 20200520
Year: 2020
Language: eng
Abstract: The fundamental magnetic characteristics of R2Fe14B intermetallics are highly sensitive to atomic substitutions and interstitial absorption of light elements. In this work, both were combined, and the influence of the substitutions in the R-sublattice and hydrogen absorption on the magnetization of (RR’) 2Fe14BHx (R is Tm or Er, and R’ is Nd) in magnetic fields up to 58 T was studied. By using direct hydrogen absorption, (R0.5Nd0.5)2Fe14BHx compounds were obtained with hydrogen content 0≤x≤5.5. Magnetic measurements were carried out on nanopowders. The strength of the inter-sublattice coupling in (R0.5Nd0.5)2Fe14B and their hydrides is estimated by analysing high-field magnetization data. It is shown that hydrogenation weakens the inter-sublattice exchange interaction up to 45 %.
Keywords: hydride properties; intermetallics; magnetism in solids; powder metallurgy; rare earth
Host item entry: Conference Proceedings - METAL 2020, ISBN 978-80-87294-97-0, ISSN 2694-9296
Note: Související webová stránka: https://www.metalconference.eu/cz/

Institution: Institute of Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0316621

Permalink: http://www.nusl.cz/ntk/nusl-433027


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Research > Institutes ASCR > Institute of Physics
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 Record created 2021-02-24, last modified 2023-06-04


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