Superconducting and Insulating Behavior in One-Dimensional Josephson Junction Arrays

Details Superconducting and Insulating Behavior in One-Dimensional Josephson Junction Arrays Superconducting and Insulating Behavior in One-Dimensional Josephson Junction Arrays

2000-01-11

arxiv.org/abs/cond-mat/0001143v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

17 pages,8 figures, ETMS meeting Gothenburg Sweden, to appear JLTP

Scientific paper

Experiments on one-dimensional small capacitance Josephson Junction arrays are described. The arrays have a junction capacitance that is much larger than the stray capacitance of the electrodes, which we argue is important for observation of Coulomb blockade. The Josephson energy can be tuned in situ and an evolution from Josephson-like to Coulomb blockade behavior is observed. This evolution can be described as a superconducting to insulating, quantum phase transition. In the Coulomb blockade state, hysteretic current-voltage characteristics are described by a dynamic model which is dual to the resistively shunted junction model of classical Josephson junctions.

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