Exciton recombination in one-dimensional organic Mott insulators
Copyright policy )Exciton recombination in one-dimensional organic Mott insulators
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.
5 + 3 pages, 2 figures
Condensed Matter - Strongly Correlated Electrons, Strongly Correlated Electrons (cond-mat.str-el), FOS: Physical sciences, info:eu-repo/classification/ddc/530
Condensed Matter - Strongly Correlated Electrons, Strongly Correlated Electrons (cond-mat.str-el), FOS: Physical sciences, info:eu-repo/classification/ddc/530
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