Antiferromagnetism of Double Molybdate LiFe(MoO${}_4$)${}_2$

Abstract

The magnetic properties of the spin-5/2 double molybdate LiFe(MoO${}_4$)${}_2$ have been characterized by heat capacity, magnetic susceptibility, and neutron powder diffraction techniques. Unlike the multiferroic system LiFe(MoO${}_4$)${}_2$ which exhibits two successive magnetic transitions, LiFe(MoO${}_4$)${}_2$ undergoes only one antiferromagnetic transition at $T_N$ ~ 23.8 K. Its antiferromagnetic magnetic structure with the commensurate propagation vector k = (0, 0.5, 0) has been determined. Density functional theory calculations confirm the antiferromagnetic ground state and provide a numerical estimate of the relevant exchange coupling constants.

24 pages, 8 figures

References in corpus (5)

• Restoring the density-gradient expansion for exchange in solids and surfaces
• Generalized gradient approximation for solids and their surfaces
• First-principles study of spontaneous polarization in multiferroic BiFeO${}_3$
• Ferroelectric polarization flop in a frustrated magnet MnWO${}_4$ induced by magnetic fields
• Direct transition from a disordered to a multiferroic phase on a triangular lattice

Cited by in corpus (1)

• Incommensurate-commensurate magnetic phase transition in the double tungstate Li2Co(WO4)2