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Effect of Si and Ga substitutions on the magnetocaloric properties of NiCoMnSb quaternary Heusler alloys
Roshnee Sahoo, Ajaya K. Nayak, K. G. Suresh +1
The effect of Si and Ga substitutions on the magnetic and the magnetocaloric properties in Heusler based system Ni46Co4Mn38Sb12-xZx (Z=Si and Ga) has been studied. From the M(T) pl…
Giant inverse magnetocaloric effect near room temperature in Co substituted NiMnSb Heusler alloys
Ajaya K Nayak, K G Suresh, A K Nigam
The effect of Co on the structural, magnetic and magnetocaloric effect (MCE) of Ni50-xCoxMn38Sb12 (x=0,2,3,4,5) Heusler alloys was studied. Using x-ray diffraction, we show the evo…
Observation of enhanced exchange bias behavior in NiCoMnSb Heusler alloys
Ajaya K. Nayak, K. G. Suresh, A. K. Nigam
We report the observation of large exchange bias in Ni50-xCoxMn38Sb12 Heusler alloys with x=0, 2, 3, 4, 5, which is attributed to the coexistence of ferromagnetic and antiferromagn…
Pressure induced magnetic and magnetocaloric properties in NiCoMnSb Heusler alloy
Ajaya K. Nayak, K. G. Suresh, A. K. Nigam +2
The effect of pressure on the magnetic and the magnetocaloric properties around the martensitic transformation temperature in NiCoMnSb Heusler alloy has been studied. The martensit…
Irreversibility of field-induced magnetostructural transition in NiCoMnSb shape memory alloy revealed by magnetization, transport and heat capacity studies
Ajaya K. Nayak, K. G. Suresh, A. K. Nigam
The effects of magnetic field on the martensitic transition have been studied in Ni45Co5Mn38Sb12. We find a large field-induced irreversibility in this system, as revealed by the f…