Giant effect of Sm atoms on time stability of (NdDy)(FeCo)B magnet

. Small amount of Sm additives (∼ 1 -3 at.%) slow down two times relaxation of magnetization of (NdDy)(FeCo)B alloys. Effective freezing of spontaneous relaxation of magnetization is caused by the enhancement of potential barriers of the domain walls. Easy plane single-ion anisotropy of Sm strongly...

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Veröffentlicht in:	European physical journal plus 2016-09, Vol.131 (9), p.344, Article 344
Hauptverfasser:	Morgunov, Roman B., Kunitsyna, Ekaterina I., Kucheryaev, Victor V., Piskorskii, Vadim P., Ospennikova, Olga G., Kablov, Eugene N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Additives Anisotropy Applied and Technical Physics Atomic Complex Systems Condensed Matter Physics Domain walls Freezing Magnetization Magnets Mathematical and Computational Physics Molecular Optical and Plasma Physics Physics Physics and Astronomy Regular Article Theoretical
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Zusammenfassung:	. Small amount of Sm additives (∼ 1 -3 at.%) slow down two times relaxation of magnetization of (NdDy)(FeCo)B alloys. Effective freezing of spontaneous relaxation of magnetization is caused by the enhancement of potential barriers of the domain walls. Easy plane single-ion anisotropy of Sm strongly disturbs the potential relief of the domain walls. The experimental results can be used to stabilize hard magnets.
ISSN:	2190-5444 2190-5444
DOI:	10.1140/epjp/i2016-16344-7