Phase diagram and magnetocaloric effects in Ni50Mn 35(In1-xCrx)15 and (Mn 1-xCrx)NiGe1.05 alloys
The magnetocaloric and thermomagnetic properties of Ni50Mn 35(In1-xCrx)15 and (Mn 1-xCrx) NiGe1.05 systems for 0 ≤ x ≤ 0.105 and 0 ≤ x ≤ 0.1, respectively, have been studied by x-ray diffraction, differential scanning calorimetry, and magnetization measurements. Partial substitution of Cr for Mn in (Mn1-xCrx)NiGe 1.05 results in a first order magnetostructural transition from a hexagonal paramagnetic to an orthorhombic paramagnetic phase near TM ∼ 380 K (for x = 0.07). Partial substitution of Cr for In in Ni 50Mn35(In1-xCrx)15 shifts the magnetostructural transition to a higher temperature (T = TM ∼ 450 K) for x = 0.1. Large magnetic entropy changes of ΔS = -12 (J/(kgK)) and ΔS = -11 (J/(kgK)), both for a magnetic field change of 5 T, were observed in the vicinity of TM for (Mn1-xCr x)NiGe1.05 and Ni50Mn35(In 1-xCrx)15, respectively. © 2014 AIP Publishing LLC.
Publication Source (Journal or Book title)
Journal of Applied Physics
Quetz, A., Muchharla, B., Samanta, T., Dubenko, I., Talapatra, S., Stadler, S., & Ali, N. (2014). Phase diagram and magnetocaloric effects in Ni50Mn 35(In1-xCrx)15 and (Mn 1-xCrx)NiGe1.05 alloys. Journal of Applied Physics, 115 (17) https://doi.org/10.1063/1.4866082