Kinetic effects in the magnetic and magnetocaloric properties of metamagnetic Ni50Mn35In14.25B0.75
Ni50Mn35In14.25B0.75 is a typical representative of the family of metamagnetic In-based Heusler alloys which shows large magnetocaloric effects generated from first order magnetostructural and ferromagnetic-paramagnetic transitions. For this alloy, a study of the adiabatic temperature change ΔTad by a direct method and through thermomagnetic measurements in magnetic fields up to 14 T has been performed. It has been shown that the rate of heating/cooling can affect the magnitude and sign of ΔTad. The application of magnetic fields larger than 12 T (on cooling) results in the “kinetic arrest” of the ferromagnetic austenitic phase. The effects of the temperature and magnetic history, and kinetic effects, on ΔTad of these Ni-Mn-In-based Heusler alloys in high magnetic fields are discussed.
Publication Source (Journal or Book title)
Journal of Magnetism and Magnetic Materials
Koshkid'ko, Y., Pandey, S., Quetz, A., Aryal, A., Dubenko, I., Cwik, J., Dilmieva, E., Granovsky, A., Lähderanta, E., Stadler, S., & Ali, N. (2018). Kinetic effects in the magnetic and magnetocaloric properties of metamagnetic Ni50Mn35In14.25B0.75. Journal of Magnetism and Magnetic Materials, 459, 98-101. https://doi.org/10.1016/j.jmmm.2017.11.125