Giant magnetocaloric effects near room temperature in Mn 1-xCuxCoGe
Magnetic and structural transitions were found to coincide by substituting Cu for Mn in Mn1-xCuxCoGe, leading to a giant magnetocaloric effects associated with the first-order magnetostructural phase transition from the ferromagnetic to paramagnetic state. Maximum magnetic entropy changes of -ΔSM=52.5 and 53.3 J/kg K for a magnetic field change of ΔH=5T have been observed at 302 and 316K, for x=0.080 and 0.085, respectively. The giant magnetocaloric effects with tunable phase transition temperatures through subtle variations in composition make this system promising for room-temperature magnetic cooling applications. © 2012 American Institute of Physics.
Publication Source (Journal or Book title)
Applied Physics Letters
Samanta, T., Dubenko, I., Quetz, A., Stadler, S., & Ali, N. (2012). Giant magnetocaloric effects near room temperature in Mn 1-xCuxCoGe. Applied Physics Letters, 101 (24) https://doi.org/10.1063/1.4770379