Numerical simulation of the one-dimensional incommensurate charge density wave dynamics

M. Qjani; A. Arbaoui; A. Ayadi; Y. Boughaleb; J. Dumas

doi:10.1016/S0379-6779(98)00079-4

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Numerical simulation of the one-dimensional incommensurate charge density wave dynamics

Journal article

Peer reviewed

Numerical simulation of the one-dimensional incommensurate charge density wave dynamics

M. Qjani, A. Arbaoui, A. Ayadi, Y. Boughaleb and J. Dumas

Synthetic metals, Vol.96(2), pp.137-140

30/07/1998

DOI: https://doi.org/10.1016/S0379-6779(98)00079-4

Abstract

Fluctuation phenomena

Nonlinear transport

Random pinning of charge density wave

Threshold field

The effect of impurities on the dynamic properties of the charge density wave (CDW) system is explored through numerical simulations based on the one-dimensional Fukuyama, Lee and Rice (FLR) elastic model of weakly pinned incommensurate CDW. In agreement with previous experimental work, the current density J CDW transported by the sliding CDW and the associated excess conductivity σ CDW are found to obey respectively the laws J CDW ∝ (E/E T−1) α and σ CDW ∝ (E T/E) (E/E T −1 α in a wide range of fields and impurity concentrations; α is an impurities dependent exponent and E T is the threshold field. The spatial mean velocity fluctuations present a pic which broadens with increasing field for E ⪢ E T.

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Title: Numerical simulation of the one-dimensional incommensurate charge density wave dynamics
Creators - without role: M. Qjani - Chouaib Doukkali University
A. Arbaoui - Chouaib Doukkali University
A. Ayadi - Chouaib Doukkali University
Y. Boughaleb - University of Hassan II Casablanca
J. Dumas - BP
Publication Details: Synthetic metals, Vol.96(2), pp.137-140
Publisher: Elsevier B.V
Identifiers: 9930395608331
Academic Unit: Taibah University
Language: English
Resource Type: Journal article