Volume 50, Number 1, April I 2000
|Page(s)||75 - 80|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
A multiple origin for non-linear transport properties in molybdenum blue bronze
Clemson University Department of Physics and Astronomy -
Clemson, SC 29634 USA
and Centre des Recherches sur les Très Basses Températures, CNRS
BP 166, 38042 Grenoble Cedex, France
2 Laboratoire d'Etudes des Propriétés Electroniques des Solides, CNRS BP 166, 38042 Grenoble Cedex, France
Corresponding author: email@example.com
Accepted: 25 January 2000
We report on non-linear transport properties in molybdenum blue bronze. We show that the conductivity sharply increases above a characteristic threshold field in three perpendicular crystallographic directions. This threshold field is visible up to room temperature in the direction perpendicular to the () plane. Data suggests that this singularity is probably not related to the motion of the Charge Density Wave (CDW). Along the CDW axis, the electric field dependence of the conductivity for can be very well described by the scaling theory of the CDW creep in the presence of randomly distributed pinning centers.
PACS: 71.45.Lr – Charge-density-wave systems / 72.15.Nj – Collective modes (e.g., in one-dimensional conductors) / 71.30.+h – Metal-insulator transitions and other electronic transitions
© EDP Sciences, 2000
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