Surface Morphology and Magnetic Properties of (Sm,Gd)Fe2 With Laves Phase Structure

The magnetic and magnetostrictive properties of single-phase SmFe 2 and GdFe 2 alloys made by induction melting were investigated and compared. Atomic force and magnetic force microscopy were used to study the surface features of the alloys. Both alloys were granular; large structural elements consi...

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Bibliographic Details
Published in:IEEE magnetics letters 2019, Vol.10, p.1-5
Main Authors: Kaminskaya, Tatiana P., Politova, Galina A., Karpenkov, Aleksey Yu, Ganin, Maksim A.
Format: Article
Language:English
Subjects:
Atomic force microscopy
Gadolinium
Induction melting
Laves phase
Magnetic domains
Magnetic fields
Magnetic forces
Magnetic properties
Magnetic structure
Magnetism
Magnetostriction
Metals
Microscopy
Morphology
rare earth-iron intermetallics
Soft magnetic materials
Solid phases
Structural members
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Summary:The magnetic and magnetostrictive properties of single-phase SmFe 2 and GdFe 2 alloys made by induction melting were investigated and compared. Atomic force and magnetic force microscopy were used to study the surface features of the alloys. Both alloys were granular; large structural elements consisted of finer grains, 40 to 80 nm in size. On the surface of a polished section of GdFe 2 , several types of magnetic domains structure were evident. Some areas had an absence of magnetic structure. A polished section of SmFe 2 had a pronounced domain structure of complex shape, consisting of islands 6 to 12 μm in size and bands 3 to 5 μm wide.
ISSN:1949-307X
1949-3088
DOI:10.1109/LMAG.2019.2955428