Co thin film with metastable bcc structure formed on GaAs(111) substrate Shigeyuki Minakawa, Daisuke Suzuki, Mitsuru Ohtake, Nobuyuki Inaba and Masaaki Futamoto EPJ Web of Conferences, 75 (2014) 01004 Published online: 03 July 2014 DOI: 10.1051/epjconf/20147501004