Tweaking the spin-wave dispersion and suppressing the incommensurate phase in LiNiPO${}_4$ by iron substitution

Jiying Li, Thomas B. S. Jensen, Niels. H. Andersen +5

Elastic and inelastic neutron scattering studies of Li(Ni${}_{1-x}$Fe${}_x$)PO${}_4$ single crystals reveal anomalous spin-wave dispersions along the crystallographic direction paralle…