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Effect of Fe substitution on the magnetic, transport, thermal and magnetocaloric properties in Ni50Mn38−xFexSb12 Heusler alloys
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10.1063/1.3590398
/content/aip/journal/jap/109/12/10.1063/1.3590398
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/12/10.1063/1.3590398

Figures

Image of FIG. 1.
FIG. 1.

(Color online) X-ray diffraction patterns of Ni50Mn38− x Fe x Sb12 alloys for x = 1, 2, 3, 4 and 5 at room temperature. The Rietveld refinement is shown for x = 5.

Image of FIG. 2.
FIG. 2.

(Color online) (a-f) ZFC and FCC magnetization curves as a function of temperature at 1 kOe in Ni50Mn38− x Fe x Sb12. The inset in (b) shows the variation in x = 2 for a field of 50 kOe.

Image of FIG. 3.
FIG. 3.

(Color online) Isothermal magnetization curves of Ni50Mn38− x Fe x Sb12 for x = 1, 2, 3, and 4 at various temperatures in the martensitic transition region. The insets in (a) and (b) show the temperature variation of the hysteresis loss.

Image of FIG. 4.
FIG. 4.

(Color online) Temperature variation of isothermal magnetic entropy change (ΔSM ) in Ni50Mn38− x Fe x Sb12 calculated for the increasing field mode. For x = 1 and 2, magnetic entropy change has been calculated using the decreasing field data also, as shown by the dashed line.

Image of FIG. 5.
FIG. 5.

(Color online) Temperature dependence of heat capacity in zero and 50 kOe fields for x = 2, 4, and 5 in Ni50Mn38− x Fe x Sb12 alloys. The inset shows the shift of the peak with field.

Image of FIG. 6.
FIG. 6.

(Color online) Electrical resistivity as a function of temperature in cooling and heating modes in Ni50Mn38− x Fe x Sb12 for x = 1–6 in zero field.

Image of FIG. 7.
FIG. 7.

(Color online) Magnetoresistance vs temperature for x = 1, 2, and 3 in Ni50Mn38− x Fe x Sb12 alloys.

Image of FIG. 8.
FIG. 8.

(Color online) ZFC and FC (at 50 kOe) hysteresis loops of Ni50Mn36Fe2Sb12 at 5 K.

Image of FIG. 9.
FIG. 9.

(Color online) M vs H loops for Ni50Mn36Fe2Sb12 at different temperatures after field cooling in 50 kOe.

Image of FIG. 10.
FIG. 10.

(Color online) H EB and HC field values at different temperatures in Ni50Mn38− x FexSb12 with x = 2 and 4.

Tables

Generic image for table
Table I.

Transition temperatures, (e/a) ratio, and magnetic entropy change (ΔSM ) as a function of x in Ni50Mn38− x Fe x Sb12.

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/content/aip/journal/jap/109/12/10.1063/1.3590398
2011-06-20
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of Fe substitution on the magnetic, transport, thermal and magnetocaloric properties in Ni50Mn38−xFexSb12 Heusler alloys
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/12/10.1063/1.3590398
10.1063/1.3590398
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