Powder X-Ray diffraction pattern for the samples of Er3−xGdxCo (x = 0–3).
(a) Temperature dependence of the magnetization of Er3−xGdxCo (x = 0, 0.5, 1, 1.5, 2, 2.5, 3) compounds measured in a magnetic field of 0.01 T. The inset: transition temperature-x; (b)The temperature dependences of the magnetization for Er2.5Gd0.5Co in different magnetic fields. The inset: The experiment μ eff and theoretical value μ eff−x.
Magnetization isotherms of Er2Gd1Co compound, (a) in a temperature range of 20–110 K with different temperature step sunder applied fields 0–7 T. (b)in a temperature range of 5–35 K with field increasing and decreasing under applied fields 0–1.4 T. Inset: the critical magnetic field-T.
The magnetic entropy change −ΔSM as a function of temperature for the Er3−xGdxCo compounds under 0–5 T. The inset (a)the full width of half maximum −x; (b)−ΔSMax−x and RCP-x in 0–5 T.
(a-e) Temperature dependences of magnetic entropy changes −ΔSM for the Er3−xGdxCo (x = 0.5–2.5) compounds for 0–5 T by bimodal lorentzian fitting. (f) temperature of two peaks−x.
(a) Temperature dependences of magnetic entropy change in Er1.5Gd1.5Co for different magnetic field changes. (b)Magnetic field dependences of magnetic entropy change in Er1.5Gd1.5Co for different temperature changes.
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