Abstract :
Magnetocaloric properties of Ni2.29Mn0.89Ga0.82, a Ga deficient and Ni rich composition have been studied. It has been shown that an optimum shape of magnetic entropy change versus temperature Δ S m ( T ) curve results in large refrigeration capacity (RC) of ∼ 100 J/Kg in an applied field of 5T, around 319 K.
