High-field magnetization study of (Nd,Dy)2Fe14B: Intrinsic properties and promising compositions

The crystal-electric field and exchange parameters are determined for the (Nd0.5Dy0.5)2Fe14B compound by analyzing experimental magnetization curves obtained in high magnetic fields up to 58 T. The series (NdxDy1-x)2Fe14B compounds were analyzed theoretically to achieve a temperature stability while...

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Bibliographic Details
Published in:Intermetallics 2020-09, Vol.124, p.106840, Article 106840
Main Authors: Kostyuchenko, N.V., Tereshina, I.S., Gorbunov, D.I., Tereshina-Chitrova, E.A., Rogacki, K., Andreev, A.V., Doerr, M., Politova, G.A., Zvezdin, A.K.
Format: Article
Language:English
Subjects:
Coercivity
Computer simulation
Crystal-field parameters
Electric fields
Exchange parameters
Hard magnetic materials
High magnetic field
Magnetic properties
Magnetism
Magnetization
Magnetization curves
Maximum energy product
Neodymium
Stability analysis
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Summary:The crystal-electric field and exchange parameters are determined for the (Nd0.5Dy0.5)2Fe14B compound by analyzing experimental magnetization curves obtained in high magnetic fields up to 58 T. The series (NdxDy1-x)2Fe14B compounds were analyzed theoretically to achieve a temperature stability while maintaining a large maximum energy product (BH)max. We demonstrate that computational simulations is an important tool in the materials design. •The crystal-field and exchange parameters are determined.•The dependency of (BH)max on temperature was obtained.
ISSN:0966-9795
1879-0216
DOI:10.1016/j.intermet.2020.106840