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The thermomagnetic hysteresis loops of a $\text{Ni}_{45.7}\text{Mn}_{36.6}\text{In}_{13.5}\text{Co}_{4.2}$ Heusler-type alloy exhibiting inverse magnetocaloric effect were studied with the help of first-order reversal curves (FORC). These have been measured using two different protocols (either upon heating or cooling the sample) and using different applied magnetic fields. For proper comparison,...
Heusler alloys with nickel rich nominal composition Ni2+xMn1-xGa (x = 0.16 - 0.26) were prepared by arc-melting and subsequent homogenization by annealing. A large magnetic entropy change around room temperature was observed in the alloy where martensite-austenite structural and ferro-para magnetic transition temperatures almost coincide with each other. It also shows large hysteresis in the magnetization...
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