Molecular spin-orbit excitations in the J_eff = 1/2 frustrated spinel GeCo${}_2$O${}_4$

K. Tomiyasu, M. K. Crawford, D. T. Adroja +9

We describe powder and single-crystal inelastic neutron scattering experiments on a spinel-type antiferromagnet GeCo${}_2$O${}_4$, represented by an effective total angular momentum J_…