Tuesday, April 16, 2013

1304.3643 (Louk Rademaker et al.)

Enhancement of spin propagation due to interlayer exciton condensation    [PDF]

Louk Rademaker, Jeroen van den Brink, Hans Hilgenkamp, Jan Zaanen
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.
View original: http://arxiv.org/abs/1304.3643

No comments:

Post a Comment