%0 Journal Article
%T Enhancement of spin propagation due to interlayer exciton condensation
%A Louk Rademaker
%A Jeroen van den Brink
%A Hans Hilgenkamp
%A Jan Zaanen
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevB.88.121101
%X We show that an interlayer exciton condensate doped into a strongly correlated Mott insulator exhibits a remarkable enhancement of the bandwidth of the magnetic excitations (triplons). This triplon is visible in the dynamical magnetic susceptibility and can be measured using resonant inelastic X-ray scattering. The bandwidth of the triplon scales with the exciton superfluid density, but only in the limit of strong correlations. As such the triplon bandwidth acts as a probe of exciton-spin interactions in the condensate.
%U http://arxiv.org/abs/1304.3643v2