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Temporally ordered collective creep and dynamic transition in the charge-density-wave conductor NbSe3

S. G. Lemay·R. E. Thorne·Y. Li·J. D. Brock
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Abstract

We have observed an unusual form of creep at low temperatures in the charge-density-wave (CDW) conductor NbSe$_3$. 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.

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S. G. Lemay, R. E. Thorne, Y. Li, J. D. Brock. 1999-08-12. Temporally ordered collective creep and dynamic transition in the charge-density-wave conductor NbSe3. https://doi.org/10.1103/physrevlett.83.2793

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