Magnetic and thermoelectric properties of melt-spun ribbons of Fe2XAl (X = Co, Ni) Heusler compounds

The magnetic properties and thermoelectric properties of two Heusler compounds, the Fe2CoAl and Fe2NiAl phases, were investigated. The Fe2CoAl and Fe2NiAl compounds were ferromagnetic at room temperature and showed high saturation magnetization of 135 emu/g for the Fe2CoAl compound and 116 emu/g for...

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Bibliographic Details
Published inJournal of applied physics Vol. 124; no. 7
Main Authors Saito, Tetsuji, Nishio-Hamane, Daisuke
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 21.08.2018
Subjects
Applied physics
Curie temperature
Ferromagnetism
Magnetic properties
Magnetic saturation
Magnetism
Melt spinning
Nickel compounds
Thermoelectricity
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ISSN0021-8979
1089-7550
DOI10.1063/1.5029868

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Summary:The magnetic properties and thermoelectric properties of two Heusler compounds, the Fe2CoAl and Fe2NiAl phases, were investigated. The Fe2CoAl and Fe2NiAl compounds were ferromagnetic at room temperature and showed high saturation magnetization of 135 emu/g for the Fe2CoAl compound and 116 emu/g for the Fe2NiAl compound. Both compounds exhibited a high Curie temperature of around 1000 K. It was found that these compounds showed low electrical resistivity of less than 6.0 μΩm at room temperature. Thermoelectric measurements revealed that these compounds had negative Seebeck coefficients of −20 μV/K for the Fe2CoAl compound and −15 μV/K for the Fe2NiAl compound at room temperature.
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ISSN:0021-8979
1089-7550
DOI:10.1063/1.5029868