Refining magnetic interactions from the magnetic field dependence of spin-wave excitations in magnetoelectric LiFePO${}_4$

L. Peedu, V. Kocsis, D. Szaller +13

We investigated the spin excitations of magnetoelectric ${\text{LiFePO}}_4$ by THz absorption spectroscopy in magnetic fields up to 33T. By studying their selection rules, we fou…