A nanocryotron memory and logic family
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142601_1_5.0144686.pdf
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2.83 MB
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Checksum (MD5)
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Author(s)
Buzzi, Alessandro
Castellani, Matteo
Foster, Reed A.
Medeiros, Owen
Colangelo, Marco
Berggren, Karl K.
Date Issued
April 3, 2023
Publisher
AIP Publishing
Citation
Alessandro Buzzi, Matteo Castellani, Reed A. Foster, Owen Medeiros, Marco Colangelo, Karl K. Berggren; A nanocryotron memory and logic family. Appl. Phys. Lett. 3 April 2023; 122 (14): 142601.
Version
Final published version
Abstract
The development of superconducting electronics based on nanocryotrons has been limited so far to few device circuits, in part due to the lack of standard and robust logic cells. Here, we introduce and experimentally demonstrate designs for a set of nanocryotron-based building blocks that can be configured and combined to implement memory and logic functions. The devices were fabricated by patterning a single superconducting layer of niobium nitride and measured in liquid helium on a wide range of operating points. The tests show 10 − 4 bit error rates with above ± 20 % margins up to 50 MHz and the possibility of operating under the effect of an out-of-plane 36 mT magnetic field, with ± 30 % margins at 10 MHz. Additionally, we designed and measured an equivalent delay-flip-flop made of two memory cells to show the possibility of combining multiple building blocks to make larger circuits. These blocks may constitute a solid foundation for the development of nanocryotron logic circuits and finite-state machines with potential applications in the integrated processing and control of superconducting nanowire single-photon detectors.
Subjects
Physics and Astronomy (miscellaneous)
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1063/5.0144686
