Spin dynamics and possible topological magnons in non-stoichiometric pyrochlore iridate Tb${}_2$Ir${}_2$O${}_7$ studied by RIXS

Q. Faure, A. Toschi, J. R. Soh +5

We report a resonant inelastic X-ray scattering study on a single crystal of a non-stoichiometric pyrochlore iridate Tb${}_{2+x}$Ir${}_{2-x}$O${}_{7-y}$ ($x\simeq 0.25$) that magnetical…