Double spin-glass-like behavior and antiferromagnetic superexchange interaction between Fe3+ ions in α-Ga2− xFe xO3 (0 ≤ x ≤ 0.4)*
Lv Yi-Fei†, Xiang Jian-Yong†, Wen Fu-Sheng, Lv Wei-Ming, Hu Wen-Tao, Liu Zhong-Yuan
       
(a) Magnetization as a function of the magnetic field for the sample α -Ga2− x Fe x O3 at different temperatures. (a) α -GF0.1O at 5, 20, and 100 K. (b) α -GF0.2O at 5, 10, 20, 50, and 100 K. (c) α -GF0.3O at 5, 10, 30, 50, and 100 K. (d) α -GF0.4O at 5, 10, 20, 50, 80, and 100 K. Inset is the enlarged plots of M – H loops of the corresponded temperatures.