Theoretical prediction and experimental study of a ferromagnetic shape   memory alloy: Ga_2MnNi
  We predict the existence of a new ferromagnetic shape memory alloy Ga_2MnNi using density functional theory. The martensitic start temperature (T_M) is found to be approximately proportional to the stabilization energy of the martensitic phase (deltaE_tot) for different shape memory alloys. Experimental studies performed to verify the theoretical results show that Ga_2MnNi is ferromagnetic at room temperature and the T_M and T_C are 780K and 330K, respectively. Both from theory and experiment, the martensitic transition is found to be volume conserving that is indicative of shape memory behavior. 
S. R. Barman, Aparna Chakrabarti, Sanjay Singh, S. Banik, S. Bhardwaj,   P. L. Paulose, B. A. Chalke, A. K. Panda, A. Mitra,...