Magnetic and Structural Characterization of Nickel and Iron Based Heusler Ribbons Ni2FeZ (Z = In, Sn, Sb)
L. Frol'ováa, T. Ryba b, Z. Vargová a, V. Komanický b, J. Kováč c, R. Gyepes d and R. Varga b
aDept. Inorg. Chem., Fac. Sci., UPJS, Moyzesova 11, 041 54 Košice, Slovakia
bInstitute of Physics, Faculty of Sciences, UPJS, Košice 041 54, Slovakia
cIEF SAS, Watsonova 47, 040 01 Košice, Slovakia
dDept. of Chemistry, Faculty of Education, J. Selye University, Komárno, Slovakia
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Comparison of structural, chemical, and magnetic properties of Ni2FeZ (Z = In, Sn, Sb) Heusler ribbons produced by melt-spinning method is presented. The aim of work was to prepare the Heusler alloys with the appropriate chemical composition in a single step without additional thermal treatment. Scanning electron microscopy analysis revealed polycrystalline structure of all samples. It is shown that correct L21 structure of Ni2FeSb can be obtained in a single production step. On the other hand, no Heusler L21 phase (nor its variants) occur in Ni2FeSn alloy. Additionally, magnetic characterization revealed high Curie temperatures of the Heusler phases (above 600 K for Ni2FeSb and 800 K for Ni2FeIn).

DOI: 10.12693/APhysPolA.131.735
PACS numbers: 75.20.En, 75.30.Gw