Abstract
We present results on the magnetic field-induced martensitic phase transformation in Ni 2MnGa. The experiments were carried out in a wide temperature range from 10 to 300 K and in magnetic fields up to 5 T. Two successive anomalies in the temperature dependence of main (2 2 0) peak width, corresponding to martensitic transition temperature ( T m) and premartensitic transition temperature ( T p), respectively, are detected. It is found that T m increases and T p decreases with applying magnetic fields up to 2 T, and then the transition temperatures do not change in fields up to 5 T.
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