Comparison of Josephson vortex flow transistors with different gate line configurations

Schuler, J.; Weiss, S.; Bauch, T.; Marx, A.; Koelle, D.; Gross, R.
February 2001
Applied Physics Letters;2/19/2001, Vol. 78 Issue 8, p1095
Academic Journal
We performed numerical simulations and experiments on Josephson vortex flow transistors based on parallel arrays of YBa[sub 2]Cu[sub 3]O[sub 7-δ] grain boundary junctions with a cross gate line allowing us to operate the same devices in two different modes named the Josephson fluxon transistor (JFT) and Josephson fluxon-antifluxon transistor (JFAT). The simulations yield a general expression for the current gain versus 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. © 2001 American Institute of Physics.


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