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Temperature dependence of magnetization (M, left scale) and the reciprocal susceptibility (1/χ, right scale) for ErMn2Si2 in an external magnetic field H = 1 T; inset shows the M-T curves with increasing and decreasing temperature around its ordering temperature under the magnetic fields of 0.1 and 1 T, respectively.
(a) Temperature dependences of the magnetization for ErMn2Si2 under various magnetic fields up to 2 T; (b) the magnetization isotherms for ErMn2Si2 measured on increasing field and decreasing field at 2 and 4 K; the inset of (b) shows the highlight of low field region.
(a) Magnetic field dependence of the magnetization (increasing field only) for ErMn2Si2 at some selected temperatures. (b) The plots of H/M versus M 2 for ErMn2Si2 at some selected temperatures.
Temperature dependence of heat capacity C for ErMn2Si2 under the magnetic fields of 0, 1, 2, and 5 T.
(a) Temperature dependence of magnetic entropy change −ΔS M for ErMn2Si2; the inset shows the maximum magnetic entropy change −ΔS M max as a function of magnetic field change for ErMn2Si2 and Dy0.9Tm0.1Ni2B2C (Ref. 20). (b) Temperature dependence of adiabatic temperature change ΔT ad for ErMn2Si2.
The transition temperature (T M), order of magnetic phase transition type, the maximum values of magnetocaloric parameters (−ΔS M max and RCP) with the field change of 2 and 5 T for ErMn2Si2 and some MCE materials with T M around 10 K.
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