Comparison of Josephson vortex flow transistors with different gate line configurations

Details Comparison of Josephson vortex flow transistors with different gate line configurations Comparison of Josephson vortex flow transistors with different gate line configurations

2001-01-12

arxiv.org/abs/cond-mat/0101183v1

Physics

Condensed Matter

Superconductivity

3 pages, 6 figures, accept. for publication in Appl. Phys. Lett

Scientific paper

10.1063/1.1346625

We performed numerical simulations and experiments on Josephson vortex flow transistors based on parallel arrays of YBa2Cu3O(7-x) grain boundary junctions with a cross gate-line allowing to operate the same devices in two different modes named Josephson fluxon transistor (JFT) and Josephson fluxon-antifluxon transistor (JFAT). The simulations yield a general expression for the current gain vs. number of junctions and normalized loop inductance and predict higher current gain for the JFAT. The experiments are in good agreement with simulations and show improved coupling between gate line and junctions for the JFAT as compared to the JFT.

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