Two resonant magnetic modes in an overdoped high-${\mathbf{T}}_{\mathbf{c}}$ superconductor

S. Pailhes, Y. Sidis, P. Bourges +8

A detailed inelastic neutron scattering study of the overdoped high temperature copper oxide superconductor $Y_{0.9}C{a}_{0.1}B{a}_{2}C{u}_3{O}_7$ reveals two distinct magnetic resonan…