Martensitic transition, ferrimagnetism and Fermi surface nesting in Mn2NiGa S. R. Barman, S. Banik, A. K. Shukla, C. Kamal and Aparna Chakrabarti EPL, 80 5 (2007) 57002 Published online: 30 October 2007 DOI: 10.1209/0295-5075/80/57002