%0 Journal Article
%T Exciton Recombination in One-Dimensional Organic Mott Insulators
%A Zala Lenar£¿i£¿
%A Martin Eckstein
%A Peter Prelov£¿ek
%J Physics
%D 2015
%I arXiv
%R 10.1103/PhysRevB.92.201104
%X We present a theory for the recombination of (charged) holons and doublons in one-dimensional organic Mott insulators, which is responsible for the decay of a photoexcited metallic state. Due to the charge-spin separation, the dominant mechanism for recombination at low density of charges involves a multi-phonon emission. We show that a reasonable coupling to phonons is sufficient to explain the fast recombination observed by pump-probe experiments in ET-F$_2$TCNQ, whereby we can also account for the measured pressure dependence of the recombination rate.
%U http://arxiv.org/abs/1508.03475v1