engleski

Complex energy relaxation at very low temperature in linear chain conductors with CDW's or SDW's

We present four distinct features of the energy relaxation after switching off a small heat perturbation at very low temperatures in charge density wave- and spin density wave systems which demonstrate the glassy nature of their ground state. The nonexponential decay shows the evolving &laquo ; aging effect&raquo ; with a crossover between a non-equilibrium and a thermodynamical equilibrium. This relaxation is thermally activated with the activation energy of ∼ 1-2 K, depending also on the duration of the perturbation

Theoretical study; Charge density waves; Spin density waves; Thermodynamic properties; Relaxation; One-dimensional systems; Tantalum sulfides; Fluorides phosphides; Organic conductors; Selenium heterocycle

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