Martensitic transformations and magnetic properties of nonstoichiometric alloys of the Ni–Mn–In system

Martensitic transformations and magnetic properties of Ni$_{89-x}$Mn$_x$In$_{11}$ (42 $\le x\le$ 44) alloys have been investigated. Critical temperatures of magnetic and structural phase transitions in the studied alloy system have been determined. It has been shown that the martensitic transformation induced by the magnetic field is observed in all alloys. Temperature dependences of the spontaneous magnetization of austenite and martensite as well as the magnitude of the critical field, in which martensitic transformation occurs, have been determined.