Magnetic properties and magnetoresistance effect in Ni 43.3 Mn 31.5 Fe 11.7 Al 13.5 ribbons
Applied Physics A(2017)
Abstract
The Ni 43.3 Mn 31.5 Fe 11.7 Al 13.5 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.
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Key words
Austenite,Martensite,Martensitic Transformation,Austenite Phase,Thermal Hysteresis
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