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The magnetic phase diagram and large reversible room-temperature magnetocaloric effect in antiperovskite compounds Zn1− x Sn x CFe3 (0 ≤ x ≤ 1)
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10.1063/1.4752275
/content/aip/journal/jap/112/6/10.1063/1.4752275
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/6/10.1063/1.4752275
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Figures

Image of FIG. 1.
FIG. 1.

(a) Room-temperature x-ray powder diffractions for Zn1− x Sn x CFe3 (0 ≤ x ≤ 1.0). (b) The enlargement of XRD patterns around the peak (111) for Zn1− x Sn x CFe3 (0 ≤ x ≤ 1.0). (c) The lattice parameter a as a function of x for the samples with 0 ≤ x ≤ 1.0.

Image of FIG. 2.
FIG. 2.

(a) Temperature dependent magnetization M(T)/M(5 K) curves under ZFC process at 100 Oe for Zn1− x Sn x CFe3. (b) Temperature dependence of dM/dT for Zn1− x Sn x CFe3; the inset presents the enlargement of dM/dT(T) curves for the samples with 0.8 ≤ x ≤ 1.0. (c) Magnetic field dependence of magnetization M(H) curves for Zn1− x Sn x CFe3 at 5 K. (d) Enlargement of M(H) curves at positive H; the inset shows x-dependent MS for Zn1− x Sn x CFe3.

Image of FIG. 3.
FIG. 3.

Temperature dependent magnetization M(T) curves measured at 10 Oe under ZFC/FC processes for Zn1− x Sn x CFe3 (0.8 ≤ x ≤ 1.0). (b) The magnetic phase diagram of Zn1− x Sn x CFe3 (0 ≤ x ≤ 1.0).

Image of FIG. 4.
FIG. 4.

(a) The normalized resistivity ρ(T)/ρ(350 K) dependence of temperature at zero field for Zn1− x Sn x CFe3 (0 ≤ x ≤ 0.3); the inset shows the resistivity ρ(T) for the samples with 0 ≤ x ≤ 0.3. (b) The normalized resistivity ρ(T)/ρ(350 K) dependence of temperature at zero field for Zn1− x Sn x CFe3 (0.8 ≤ x ≤ 1.0); the inset shows the resistivity ρ(T) for the samples with 0.8 ≤ x ≤ 1.0. (c) The lower-T ρ(T) data plotted as ρ(T)/ρ(350 K) vs. T2 for the samples with 0.05 ≤ x ≤ 0.3. (d) Linear fits of ρ(T)/ρ(350 K) data for the samples with 0.05 ≤ x ≤ 0.3 between 70 and 150 K.

Image of FIG. 5.
FIG. 5.

Temperature dependent M(T)/M(5 K)ZFC curves and normalized resistivity ρ(T)/ρ(350 K) at zero field for Zn1− x Sn x CFe3 (0.05 ≤ x ≤ 0.3): (a)x = 0.05; (b) x = 0.1; (c) x = 0.2; (d) x = 0.3.

Image of FIG. 6.
FIG. 6.

(a) Temperature dependence of magnetization M(T) curves for Zn0.9Sn0.1CFe3 at various magnetic fields up to 45 kOe between 200 and 350 K; the inset shows the Arrott plots deduced from M(H) curves around TC . (b) Magnetic entropy change −ΔSM as a function of temperature (200–350 K) under different magnetic field changes of ΔH = 3, 5, 10, 20, 30, and 45 kOe for Zn0.9Sn0.1CFe3; inset shows the plot of the maximum magnetic entropy change vs. H 2/3 for Zn0.9Sn0.1CFe3; the red line indicates the linear fitting results according to Eq. (2). (c) The −ΔS M-T curve for magnetic field change ΔH = 45 kOe; inset shows H-dependent RCP. (d) The comparison of RCP of Zn0.9Sn0.1CFe3H = 45 kOe) with those of potential candidates for magnetic refrigerator; the dashed line is guide to the eye.

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/content/aip/journal/jap/112/6/10.1063/1.4752275
2012-09-17
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The magnetic phase diagram and large reversible room-temperature magnetocaloric effect in antiperovskite compounds Zn1−xSnxCFe3 (0 ≤ x ≤ 1)
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/6/10.1063/1.4752275
10.1063/1.4752275
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