Defects, Order, and Hysteresis in Driven Charge-Density Waves

by: Mikko Karttunen, Mikko Haataja, KR Elder, Martin Grant

Physical Review Letters, Vol. 83, No. 17. (25 October 1999), 3518.

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Abstract

We model driven two-dimensional charge-density waves in random media via a modified Swift-Hohenberg equation; which includes both amplitude and phase fluctuations of the condensate. As the driving force is increased; the defect density first increases and then decreases. Furthermore; we find switching phenomena; due to the formation of channels of dislocations. These results are in qualitative accord with recent dynamical x-ray scattering experiments by Ringland et al. [Phys. Rev. Lett. 82 ; 1923 (1999)] and transport experiments by Lemay et al. [Phys. Rev. Lett. 83 ; 2793 (1999)].

@article{citeulike:2269585, abstract = {We model driven two-dimensional charge-density waves in random media via a modified Swift-Hohenberg equation; which includes both amplitude and phase fluctuations of the condensate. As the driving force is increased; the defect density first increases and then decreases. Furthermore; we find switching phenomena; due to the formation of channels of dislocations. These results are in qualitative accord with recent dynamical x-ray scattering experiments by Ringland et al. [Phys. Rev. Lett. 82 ; 1923 (1999)] and transport experiments by Lemay et al. [Phys. Rev. Lett. 83 ; 2793 (1999)].}, author = {Karttunen, Mikko and Haataja, Mikko and Elder, K. R. and Grant, Martin }, citeulike-article-id = {2269585}, doi = {http://dx.doi.org/10.1103/PhysRevLett.83.3518}, journal = {Physical Review Letters}, keywords = {cdw, charge-density-wave}, month = {October}, number = {17}, pages = {3518+}, posted-at = {2008-01-21 18:11:48}, priority = {2}, publisher = {American Physical Society}, title = {Defects, Order, and Hysteresis in Driven Charge-Density Waves}, url = {http://dx.doi.org/10.1103/PhysRevLett.83.3518}, volume = {83}, year = {1999} }

RIS record

TY - JOUR ID - citeulike:2269585 L3 - citeulike-article-id:2269585 TI - Defects, Order, and Hysteresis in Driven Charge-Density Waves JF - Physical Review Letters VL - 83 IS - 17 SP - 3518 PB - American Physical Society N2 - We model driven two-dimensional charge-density waves in random media via a modified Swift-Hohenberg equation; which includes both amplitude and phase fluctuations of the condensate. As the driving force is increased; the defect density first increases and then decreases. Furthermore; we find switching phenomena; due to the formation of channels of dislocations. These results are in qualitative accord with recent dynamical x-ray scattering experiments by Ringland et al. [Phys. Rev. Lett. 82 ; 1923 (1999)] and transport experiments by Lemay et al. [Phys. Rev. Lett. 83 ; 2793 (1999)]. KW - cdw KW - charge-density-wave AU - Karttunen, Mikko AU - Haataja, Mikko AU - Elder, KR AU - Grant, Martin PY - 1999/10/25/ UR - http://dx.doi.org/10.1103/PhysRevLett.83.3518 ER -

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