Temporally ordered collective creep and dynamic transition in the charge-density-wave conductor NbSe3
arXiv:cond-mat/9907106 · doi:10.1103/PhysRevLett.83.2793
Abstract
We have observed an unusual form of creep at low temperatures in the charge-density-wave (CDW) conductor NbSe. This creep develops when CDW motion becomes limited by thermally-activated phase advance past individual impurities, demonstrating the importance of local pinning and related short-length-scale dynamics. Unlike in vortex lattices, elastic collective dynamics on longer length scales results in temporally ordered motion and a finite threshold field. A first-order dynamic phase transition from creep to high-velocity sliding produces "switching" in the velocity-field characteristic.
4 pages, 4 eps figures; minor clarifications To be published in Phys. Rev. Lett
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Cited by in corpus (14)
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