Friday, June 14, 2013

1306.3086 (Lakhan Pal et al.)

Search of the half metallicity in the $Fe_{2-x}Co_xMnSi$ alloys    [PDF]

Lakhan Pal, K. G. Suresh, A. K. Nigam
Effects of the Co substitution have been observed on the magnetic and magneto-transport properties of Fe2-xCoxMnSi alloy. Curie temperature (TC) and saturation magnetization (MS) of these alloys increased linearly with the Co substitution. Competitive magnetic interaction between ferromagnetic (FM) and anti-ferromagnetic (AFM) phases exists in Fe2-xCoxMnSi for x equal or smaller than 0.1, AFM phase is completely disappears for x greater or equal to 0.2. The value of Rhodes-Wohlfarth ratio pc/ps is less than one for these alloys which is the characteristics of half metallic ferromagnets. Resistivity measurements also confirm the stability of ferromagnetism with the concentration of Co and also show a sign of half metallicity.
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