Zero-bias resistance anomalies in normal metal/charge-density wave interfaces

A number of reduced dimensional conductors, such as K 0.3MoO 3, NbSe 3, and TaS 3, exhibit collective charge density wave (CDW) transport. We report on the observation of zero-bias anomalies in the differential resistance of NbSe 3 crystals near an interface between strongly pinned and weakly pinned...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2000, Vol.341, p.789-790
Main Authors: McCarten, J.P., Miller, J.H., Xu, X.W., Pirtle, I., Liu, J.R., Chu, Wei-Kan, Claycomb, J.R., Chu, Rambis K.
Format: Article
Language:English
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Summary:A number of reduced dimensional conductors, such as K 0.3MoO 3, NbSe 3, and TaS 3, exhibit collective charge density wave (CDW) transport. We report on the observation of zero-bias anomalies in the differential resistance of NbSe 3 crystals near an interface between strongly pinned and weakly pinned regions of a CDW, where current is being converted from normal metallic to CDW current. We observe a dramatic drop in zero-bias resistance, suggesting a new phase transition, when the temperature is cooled below 44 K.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(00)00694-8