Nanoscale icosahedral packing in amorphous Mg50Ni50: An ab initio study Erkan Teti˙k, Murat Durandurdu and Faruk Karadağ EPL, 100 2 (2012) 26002 Published online: 29 October 2012 DOI: 10.1209/0295-5075/100/26002