Fabrication, Structural and Magnetic Characterization of Ni41.7Mn47.7Sn10.6 Glass-coated Microwires

Heusler-type Ni-Mn-Sn glass-coated microwires (mws) with the average chemical composition Ni 41.7 Mn 47.7 Sn 10.6 were prepared by the Taylor-Ulitovsky technique; a basic characterization of their structural, microstructural, and magnetic properties is presented. Polycrystalline mws samples had a ne...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2023-11, Vol.59 (11), p.1-1
Main Authors: Arreguin-Hernandez, M.L., Varga, M., Dzubinska, A., Reiffers, M., Ryba, T., Sanchez Llamazares, J.L., Varga, R.
Format: Article
Language:English
Subjects:
Austenite
Chemical composition
Chemicals
Crystal lattices
Crystal structure
Diameters
Heusler-type NiMnSn microwires
Magnetic field measurement
Magnetic fields
Magnetic hysteresis
Magnetic properties
Magnetic transitions
Magnetism
Microstructure
Saturation magnetization
Structural analysis
structural and magnetic properties
Taylor-Ulitovsky method
Temperature measurement
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Summary:Heusler-type Ni-Mn-Sn glass-coated microwires (mws) with the average chemical composition Ni 41.7 Mn 47.7 Sn 10.6 were prepared by the Taylor-Ulitovsky technique; a basic characterization of their structural, microstructural, and magnetic properties is presented. Polycrystalline mws samples had a nearly uniform circular cross-section with an average diameter of around 200 μm and a microstructure formed by micronic in size globular in shape grains. X-ray diffraction analysis shows that the as-prepared samples crystalize into a highly ordered L2 1 -type austenitic crystal structure with a lattice parameter a = 5.96 Å. However, the thermomagnetic analysis curves, which were measured under a low magnetic field of 10 mT, denote the occurrence of two successive magnetic transitions at 248 and 265 K which leads to a broad thermal dependence of the magnetic entropy change.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2023.3293454