Magnetocaloric effect and critical behavior of the Mn-rich itinerant material Mn<sub>3</sub>GaC with enhanced ferromagnetic interaction

Magnetocaloric effect and critical behavior of the Mn-rich itinerant material Mn₃GaC with enhanced ferromagnetic interaction

Liu Pengfei^{1, 2}, Peng Jie¹, Xue Mianqi², Wang Bosen^{3, †}

(a) Isothermal magnetization curves M(H); (b) Arrott plots derived from M(H). Inset: temperature-dependent thermopower coefficient. (c) A (on the left) and B (on the right), where A and B are magneto-elastic coupling part and electron interaction part of the Gibbs free energy, respectively. (d) The calculated and experimental ΔS_M under ΔH = 20 kOe and 45 kOe, respectively.