Journal article

Coulomb drag and depinning in bilinear Josephson junction arrays

Samuel A Wilkinson, Nicolas Vogt, Jared H Cole

NEW JOURNAL OF PHYSICS | IOP PUBLISHING LTD | Published : 2017

Abstract

Coulomb drag and depinning are electronic transport phenomena that occur in low-dimensional nanostructures. Recently, both phenomena have been reported in bilinear Josephson junction arrays. These devices provide a unique opportunity to study the interplay of Coulomb drag and depinning in a system where all relevant parameters can be controlled experimentally. We explain the Coulomb drag and depinning characteristics in the I-V curve of the bilinear Josephson junction array by adopting a quasicharge model which has previously proven useful in describing threshold phenomena in linear Josephson junction arrays. Simulations are performed for a range of coupling strengths, where numerically obta..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

We thank T Duty and H Shimada for useful discussions. This work was supported in part by the Australian Research Council under the Discovery and Centre of Excellence funding schemes (project numbers: DP140100375 and CE170100039). Computational resources were provided by the NCI National Facility systems at the Australian National University through the National Computational Merit Allocation Scheme supported by the Australian Government.