Magnetic properties and magnetoresistance effect in Ni43.3Mn31.5Fe11.7Al13.5 ribbons
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The Ni43.3Mn31.5Fe11.7Al13.5 ribbon was obtained by melt-spinning method and the microstructure, magnetic and magnetoresistance properties of these ribbons were studied by scanning electron microscope and vibration sample magnetometer. The reverse martensitic transformation from the weak-magnetic martensite phase to the ferromagnetic austenite was confirmed in these ribbons. A moderate negative magnetoresistance in the magnetic field of 30 kOe was obtained around the martensitic transformation, which would mainly owing to the field-induced reverse martensitic transformation. Taking into account of various properties, the present Ni–Fe–Mn–Al ribbons provide an impetus for further research.
KeywordsAustenite Martensite Martensitic Transformation Austenite Phase Thermal Hysteresis
This work is supported by the National Natural Science Foundation of China (Grant Nos. 51401140, 51471077), the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), and the Collaborative Innovation Center for Shanxi Advanced Permanent Magnetic Materials and Technology (2016-06).