Demonstration of a superconducting diode-with-memory, | ResearchBunny

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Abstract

This paper demonstrates prototypes of superconducting diodes operational at zero magnetic field. These diodes are based on niobium planar Josephson junctions where space-time symmetry is broken by combining the self-field effect from nonuniform bias and stray fields from a trapped Abrikosov vortex. The nonreciprocity of critical current can reach an order of magnitude, with rectification efficiency exceeding 70%. Diode polarity and nonreciprocity can be switched on/off by altering bias configuration and trapping/removing a vortex, enabling memory functionality. The potential use of these diodes in future in-memory superconducting computers is discussed.

Publisher

Nature Communications

Published On

Jun 27, 2022

Authors

Taras Golod, Vladimir M. Krasnov

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