RF assisted switching in magnetic Josephson junctions.

Caruso R. Massarotti D., Bolginov V.V., Ben Hamida A., Karelina L.N., Miano A., Vernik I.V., Tafuri F., Ryazanov V.V., Mukhanov O.A., Pepe G.P.

II - Fisica della materia
Aula 32B-2 - Mercoledì 19 h 09:00 - 13:00
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Superconducting circuits have found application in various fields, due to their high speed and high energy efficiency. However, the large scale application of these circuits is limited by the lack of compatible energy-efficient, high-speed and high capacity random access memories. In 2012, Nb-Al/AlOx-(Nb)-PdFe-Nb have been proved to compatible RAM memories for SFQ logic. However, the performances of such devices are limited by the external addressing circuitry. Here we discuss the effect on magnetic switching of RF fields, in particular the enhancement of the separation between the 0 level and the 1 level when an external microwave field is applied, and its consequences on the performances of these devices.

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