Enhanced magnetic properties in ZnCoAlO caused by exchange-coupling to Co nanoparticles oleh Qi Feng, Wala Dizayee, Xiaoli Li, David S Score, James R Neal, Anthony J Behan, Abbas Mokhtari, Marzook S Alshammari, Mohammed S Al-Qahtani, Harry J Blythe, Roy W Chantrell, Steve M Heald, Xiao-Hong Xu, A Mark Fox, Gillian A Gehring