The minimum current of a two-junction (Superconducting Quantum Interference Device) (SQUID) gate has been studied theoretically. An analytical expression for the current-voltage characteristics of the SQUID gate has been obtained, which includes the minimum current of the SQUID gate. Studies have been made of the dependences of the minimum current on parameters of the SQUID gate such as an interlinked magnetic flux, a loop inductance and a resistance. It is shown that the minimum current of the SQUID gate depends strongly on the interlinked magnetic flux, while it becomes the same as that of a single junction in the absence of the magnetic flux. It is also shown that the obtained analytical results agree well with those of computer simulation.
|Number of pages||7|
|Journal||Transactions of the Institute of Electronics and Communication Engineers of Japan. Section E|
|Publication status||Published - Jan 1 1984|
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