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(a) The room temperature x-ray powder diffraction pattern of TbNi2. Inset: typical cross-sectional microstructure of TbNi2 ribbons. (b) M(T) curves measured in the field-cooled regime at 5 mT (full red symbols) and 5 T (open symbols). Inset: the dM/dT versus T curve at 5 mT.
(a) ΔS M(T) curve(s) at μ 0ΔH = 2 and 5 T. Left inset: |ΔS M peak| as a function of (μ 0 H)2/3. Right inset: Low-field region of the Arrott plots in the temperature range between 2 and 36 K. (b) Field dependence of RC-1, RC-2, and RC-3. Inset: The field dependence of the temperatures T hot and T cold (i.e., δT FWHM = T hot − T cold).
Peak magnetic entropy change |ΔS M peak |, RC-1, RC-2, δT FWHM, T hot, T cold, RC-3, δT RC-3, and T hot and T cold related to RC-3 for as-quenched TbNi2 alloy ribbons.
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