Effects of phase dislocations on the charge density wave dynamics in quasi-one-dimensional conductors

► We show that the current density increases in presence of phase dislocations on CDW. ► The threshold ET necessary to depin a dislocation decrease with the CDW stiffness decreases. ► The local variations of the CDW are more pronounced when the CDW stiffness decreases. ► The multiplication of CDW di...

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Bibliographic Details
Published in:Synthetic metals 2013-01, Vol.164, p.52-54
Main Authors: Habiballah, N., Qjani, M., Arbaoui, A., Dumas, J.
Format: Article
Language:English
Subjects:
Charge density wave
Charge-density-wave systems
Collective effects
Condensed Matter
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dislocations
Electron states
Exact sciences and technology
Fukuyama–Lee–Rice model
Nonlinear transport
Physics
Strongly Correlated Electrons
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Summary:► We show that the current density increases in presence of phase dislocations on CDW. ► The threshold ET necessary to depin a dislocation decrease with the CDW stiffness decreases. ► The local variations of the CDW are more pronounced when the CDW stiffness decreases. ► The multiplication of CDW dislocations leads a softening of CDW. We report in this letter a numerical simulations study of the effects of phase dislocations on the dynamic properties of charge density waves (CDW) conductors, using the one-dimensional Fukuyama, Lee and Rice (FLR) model for a weakly pinned incommensurate CDW. The results show that the CDW phase dislocations affect the local dynamical properties of CDW.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2012.12.027