Structural, magnetic and electronic properties of FexCoyIrz (x + y + z = 5, 6) clusters: an ab initio study Assa Aravindh Sasikala Devi Eur. Phys. J. D, 68 5 (2014) 120 Published online: 09 May 2014 DOI: 10.1140/epjd/e2014-40471-6