Influence of Mn Doping on Magnetic and Structural Properties of Co2FeSi Heusler Alloy
L. Galduna,b, T. Ryba a, J. Kováč c, V.M. Prida b, B. Hernando b, Z. Vargová d and R. Vargaa
aInstitute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Košice, Slovakia
bDepartamento De Física, Facultad de Ciencias, Universidad de Oviedo, Calvo Sotelo s/n, 33007 Oviedo, Spain
cInstitute of Experimental Physics, SAS, Watsonova 47, 040 01 Košice, Slovakia
dInstitute of Chemistry, Faculty of Sciences, P.J. Safarik University, Moyzesova 11, 040 01 Košice, Slovakia
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We have studied the effect of Mn doping on structural and magnetic properties of Co2FeSi Heusler alloy. Co2FeSi, Co2Mn0.25Fe0.75Si and Co2Mn0.5Fe0.5Si alloys were prepared by melt spinning technique which offers fast and simple production of large amount of materials in a single production step. The rapid quenching method provides an opportunity to prepare Heusler alloys with highly ordered L21 structure confirmed by X-ray analysis in all the samples. Magnetic measurements revealed high Curie temperatures (>1000 K) and well defined easy magnetization plane parallel with the ribbon plane. Those attributes predispose given samples for applications in spintronics.

DOI: 10.12693/APhysPolA.131.866
PACS numbers: 71.20.Be, 72.20.Lp