The effect of Fe and Ni substitution in magnetocaloric MnCoGe

The MnCoGe family of compounds shows potential as a rare-earth free material for magnetocaloric applications around room temperature. We present initial findings on the effects of the substitution of Fe and Ni for Mn in a series of Mn1-xTxCoGe compounds (T = Fe, Ni; x = 0.04 - 0.10). Investigations include x-ray diffraction, differential scanning calorimetry(200 - 670 K) and magnetisation (5 - 350 K) measurements in magnetic fields up to 8 T. The influence of the Fe and Ni substitutions on the transformation temperature between the hexagonal and orthorhombic structures, the resultant phase fractions and their magnetic phase transitions are reported.
Coherent scattering, Cooling, Diffraction, Elements, Metals, Physical properties, Scattering, Transition elements
Ren, Q. Y., Hutchison, W. D., Wang, J. L., Kemp, W., Cobas, R., Cadogan, J. M., & Campbell, S. J. (2014). The effect of Fe and Ni substitution in magnetocaloric MnCoGe. Presentation to the 37th Annual Condensed Matter and Materials Meeting Wagga 2013, Charles Sturt University, Wagga Wagga, NSW 5th February – 8th February, 2013. Retrieved from: