Title of article
Numerical simulation of the one-dimensional incommensurate charge density wave dynamics
Author/Authors
M. Qjani، نويسنده , , M. A. Arbaoui، نويسنده , , Renata A. and Ayadi، نويسنده , , A. and Boughaleb، نويسنده , , Y. and Dumas، نويسنده , , J.، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 1998
Pages
4
From page
137
To page
140
Abstract
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 JCDW transported by the sliding CDW and the associated excess conductivity σCDW are found to obey respectively the laws JCDW ∝ (E/ET−1)α and σCDW ∝ (ET/E) (E/ET −1α in a wide range of fields and impurity concentrations; α is an impurities dependent exponent and ET is the threshold field. The spatial mean velocity fluctuations present a pic which broadens with increasing field for E ⪢ ET.
Keywords
Random pinning of charge density wave , Fluctuation phenomena , Threshold field , Nonlinear transport
Journal title
Synthetic Metals
Serial Year
1998
Journal title
Synthetic Metals
Record number
2071887
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