"Incoherent Topological Defect Recombination Dynamics in TbTe3"

T. Mertelj: P. Kusar, V. V. Kabanov, P. Giraldo-Gallo, I. R. Fisher, and D. Mihailovic; Physical Review Letters, 04/09/13.

Additional Authors: P. Kusar, V. V. Kabanov, P. Giraldo-Gallo, I. R. Fisher, and D. Mihailovic

Abstract:

We study the incoherent recombination of topological defects created during a rapid quench of a charge-density-wave system through the electronic ordering transition. Using a specially devised three-pulse femtosecond optical spectroscopy technique we follow the evolution of the order parameter over a wide range of time scales. By careful consideration of thermal processes we can clearly identify intrinsic topological defect annihilation processes on a time scale ∼30  ps and find a possible signature of extrinsic defect-dominated relaxation dynamics occurring on longer time scales.