Fig. 1: Crystal structure and magnetic order in Fe2−xZnxMo3O8.
From: Magnetization reversal through an antiferromagnetic state
a, b Unit cell of Fe2Mo3O8 in the AFM state and the FiM state, with tetrahedral (A) and octahedral (B) sites shown in red and blue, respectively. The greeen arrows indicate the overall magnetization of each layer. c Hexagonal layer formed by the Fe sites with dominant AFM exchange coupling J∥. d Exchange couplings JAA, JBB and JAB between the Fe ions at A and B sites of adjacent layers in the AFM state. e Temperature dependence of the real part of the magnetic ac susceptibility \({\chi }^{{\prime} }\) (solid line) and polarization P (open symbols) in Fe1.86Zn0.14Mo3O8.
