Crystal structure and high-temperature magnetoplasticity in the new Ni–Mn–Ga–Cu magnetic shape memory alloys

The effect of alloying on phase transformation temperatures and occurrence of magnetoplasticity in Ni–Mn–Ga–Cu alloys is investigated. The applied alloying had a strong effect on the transition temperatures and crystal structure of martensite. A 4.1% magnetic field induced shear strain at 330 K is achieved in single crystalline Ni–Mn–Ga–Cu alloys.