Switching of bistable magnetic states in (NdSmDy)(FeCo)B alloy in the vicinity of a spin-reorientation transition

Bistable magnetic states with two equiprobable orientations of the magnetization vector (corresponding to opposite polarities of a permanent magnet) exist in (NdSmDy)(FeCo)B magnetic alloy in the vicinity of a spin-reorientation transition. A critical value of the magnetic field strength ~1 kOe is d...

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Bibliographic Details
Published in:Technical physics letters 2017-07, Vol.43 (7), p.645-647
Main Authors: Dmitriev, A. I., Kostyuchenko, S. A.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Cryomagnetic properties
Field strength
Magnetic alloys
Magnetic fields
Magnetism
Magnets
Physics
Physics and Astronomy
Polarity
Sintering
Switching
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Summary:Bistable magnetic states with two equiprobable orientations of the magnetization vector (corresponding to opposite polarities of a permanent magnet) exist in (NdSmDy)(FeCo)B magnetic alloy in the vicinity of a spin-reorientation transition. A critical value of the magnetic field strength ~1 kOe is determined, at which switching of these bistable magnetic states takes place. It is established that the polarity of polycrystalline sintered magnets of the Nd 2 Fe 14 B family in the vicinity of a spin-reorientation transition can be stabilized by a small external bias magnetic field, which opens up new possibilities for using these magnets in cryomagnetic systems.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785017070197