Abstract
A new kind of superconducting device has been fabricated, which is recently predicted to show tunable macroscopic quantum behaviour. As such it is a nonlinear element highly sensitive to the action of electromagnetic fields. The device is a multi-terminal SQUID (MTS), consisting of a superconducting ring interrupted by a Josephson multi-terminal junction, which in our case is a 4-terminal nanocross, 240 nm long and 40 nm wide. In this work we present the fabrication process and some preliminary measurement results.
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