ACTA

Structural and Magnetic Characterization of NiMnSb Half-Heusler Alloy Prepared by Rapid Quenching

T. Ryba^a, Z. Vargova^b, R. Varga^a, S. Ilkovic^c, M. Reiffers^c, V. Haskova^a, P. Szabo^d, J. Kravcak^e, R. Gyepes^f
^aInstitute of Physics, Faculty of Sciences, P.J. Safarik University, Park Angelinum 9, 041 54 Kosice, Slovakia
^bDept. Inorg. Chem., Fac. Sci., UPJS, Moyzesova 11, 041 54 Kosice, Slovakia
^cUniv. of Presov, Fac. Hum. and Nat. Sci., SK-08078 Presov, Slovakia
^dCentre of Low Temperature Physics, Institute of Experimental Physics SAS, Watsonova 47, 04001 Kosice
^eDept. Phys., FEEI, Technical University of Kosice, Kosice, Slovakia
^fDept. of Chemistry, Faculty of Education, J. Selye University, Komárno, Slovakia

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NiMnSb half-Heusler alloy in the form: of a rod has been prepared by rapid quenching (suction-casting) method. The rod is characterized by single phase C1_b crystalline structure with lattice parameter a=5.982 Å. Magnetic measurements reveal an isotropic character of bulk NiMnSb alloy. Our study shows relatively high spin polarization of bulk NiMnSb in the range 35-50%.

DOI: 10.12693/APhysPolA.126.206
PACS numbers: 75.30.Gw, 75.50.Cc