Crossover from 2-dimensional to 1-dimensional collective pinning in NbSe3

Abstract

We have fabricated NbSe${}_3$ structures with widths comparable to the Fukuyama-Lee-Rice phase-coherence length. For samples already in the 2-dimensional pinning limit, we observe a crossover from 2-dimensional to 1-dimensional collective pinning when the crystal width is less than 1.6 $\mu$m, corresponding to the phase-coherence length in this direction. Our results show that surface pinning is negligible in our samples, and provide a means to probe the dynamics of single domains giving access to a new regime in charge-density wave physics.

arXiv comment4 pages, 2 figures, and 1 table. Accepted for publication in Physical Review B

References in corpus (2)

• Large-q asymptotics of the random bond Potts model
• Temporally ordered collective creep and dynamic transition in the charge-density-wave conductor NbSe3

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