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Field-driven structural phase transition and sign-switching magnetocaloric effect in Ni–Mn–Sn
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10.1063/1.2790829
/content/aip/journal/apl/91/13/10.1063/1.2790829
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/13/10.1063/1.2790829
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependence of the magnetization with applied field after a zero field cooling (left scale); is the Curie point in the martensite, and is the Curie point in the austenite. DSC curves at endothermic down (right scale). Inset: Electron micrograph showing the polycrystalline nature of the Ni–Mn–Sn sample, grain size, and martensite twinning (lighter/darker bands).

Image of FIG. 2.
FIG. 2.

(Color online) Adiabatic temperature changes measured upon the application of magnetic field up to starting from the equilibrium temperature . Inset: A subset of the experimental data points is compared to analytical curves see Eqs. (2) and (3).

Image of FIG. 3.
FIG. 3.

(Color online) Field evolution of the adiabatic sample temperature during a field ramp from at different starting temperatures [points: experiment; lines: model of Eqs. (2) and (3)]. Inset: Field evolution of the curves see Eqs. (2) and (3): , , , , and .

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/content/aip/journal/apl/91/13/10.1063/1.2790829
2007-09-26
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Field-driven structural phase transition and sign-switching magnetocaloric effect in Ni–Mn–Sn
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/13/10.1063/1.2790829
10.1063/1.2790829
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