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
       
Magnetization as a function of the magnetic field measured at 5 K for α -Ga2− x Fe x O3 with x = 0.1, 0.2, 0.3, and 0.4. Solid lines are the fittings to the modified Brillouin function. Inset is the measured magnetic moment per Fe3+ ion at 85 kOe and 5 K, the calculated saturation magnetic moment per Fe3+ ion, and the temperature T 0 as a function of the Fe3+ content.