Numéro |
J. Phys. IV France
Volume 12, Numéro 9, November 2002
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Page(s) | 307 - 307 | |
DOI | https://doi.org/10.1051/jp4:20020421 |
J. Phys. IV France 12 (2002) Pr9-307
DOI: 10.1051/jp4:20020421
Current inhomogeneity and effect of a transverse electric field in the CDW transport properties of quasi-one-dimensional compounds
A. Ayari1 and P. Monceau1, 21 CRTBT, 25 avenue des Martyrs, BP. 166, 38042 Grenoble, France
2 LLB, CEA-CNRS, CEA-Saclay, 91191 Gif-sur-Yvette cedex, France
Abstract
By the way of experimental measurements and numerical simulations, the effect of a transverse
electric field on the non linear transport properties of charge density wave systems has been investigated. Our
numerical simulations show that the dramatic reduction of the threshold depinnig field reported previously is
only due to current injection inhomogeneity, i.e. a part of the transverse injected current flows longitudinally
due to the anisotropic conductivity. We have therefore realized a submicron YbSe
3 structure specifically
designed to get rid of this inhomogeneity. In these conditions, we do not observe any reduction of the threshold
field even for transverse currents one order of magnitude higher than predicted and used in Ref. [2].
© EDP Sciences 2002