PROJECT TITLE :
Effect of Magnetostatic Interactions on Twin Boundary Motion in NiMnGa Magnetic Shape Memory Alloy
We have a tendency to investigated the effect of magnetostatic interactions on the sector-induced reorientation of martensite variants in Ni50.0Mn27.5Ga2two.5. The reorientation, achieved by sweeping a single Sort-II twin boundary along the sample, was triggered by a twinning stress of regarding 0.1 MPa. But, depending on the initial position of the dual boundary, the magnetic field providing the crucial stress varied within the range 832 kA/m. By taking under consideration the variants sizes and their mutual interactions, we have a tendency to explained the observed dependence of the switching field on the location of the boundary. The resulting match between model predictions and measurements illustrates the basic role played by demagnetization effects and magnetostatic interactions in magnetic shape memory effect.
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