Glassy Relaxation in Charge Density Wave Systems
Slow thermal relaxation in random systems and glasses has been an important field of study for many years. While such properties have received much attention in glasses,1 spin-glasses2 and random field magnets,3 the behavior of pinned charge-density-wave (CDW) systems has received rather less study.4 Since the commonly used Fukuyama-Lee-Rice (FLR) model5 for sliding CDW’s is similar to that of a random-field XY model and therefore possesses many metastable states, one expects that processes involving thermal hopping over free energy barriers between such states would be the dominant mechanism at long times, or low temperatures.
KeywordsCorrelation Length Metastable State Spin Glass Electric Field Pulse Free Energy Barrier
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