Room-temperature ferromagnetism with high magnetic moment in Cu-doped AlN single crystal whiskers*
Jiang Liang-Bao, Liu Yu, Zuo Si-Bin, Wang Wen-Jun†
       
(a) M – H curves by cycling the field from 5 kOe to −5 kOe, and back to 5 kOe for S1 and S2 measured at 150 K and 300 K. Inset: the detail of the coercive field of S2 and the magnetization (in units of 1 emu/g = 10−3 Am2/g) versus the magnetic field curve of undoped AlN at 150 K. (b) M – T curves of S1 and S2.