A scalable cryogenic memory system is one of the prime requirements for the implementation of practical quantum computers, large-scale single flux quantum circuits, and space electronics. Here, we leverage the memristive behavior of a conductance-asymmetric superconducting quantum interference device (CA SQUID) to design an ultra-fast and low-power memory system. We develop a physics-based circuit-compatible model for CA-SQUID-based superconducting memristors (ScMs). Using this compact model, we design and test an ScM-based nonvolatile cryogenic memory system and explore the design space. Via analyzing the sensitivity and tunability of the device hysteresis up to the array level, we provide a comprehensive guideline for its experimental realization. The ScM-based memory system has the potential to solve the scalability issue of the state-of-the-art superconducting data storage systems and may trigger rapid advancement in quantum computing, space electronics, and cryogenic neuromorphic systems.
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23 August 2021
Research Article|
August 26 2021
A cryogenic memory array based on superconducting memristors
Shamiul Alam
;
Shamiul Alam
1
Department of Electrical Engineering and Computer Science, University of Tennessee
, Knoxville, Tennessee 37996, USA
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Md Shafayat Hossain
;
Md Shafayat Hossain
2
Department of Electrical Engineering, Princeton University
, Princeton, New Jersey 08544, USA
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Ahmedullah Aziz
Ahmedullah Aziz
a)
1
Department of Electrical Engineering and Computer Science, University of Tennessee
, Knoxville, Tennessee 37996, USA
a)Author to whom correspondence should be addressed: aziz@utk.edu
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a)Author to whom correspondence should be addressed: aziz@utk.edu
Appl. Phys. Lett. 119, 082602 (2021)
Article history
Received:
June 21 2021
Accepted:
August 13 2021
Citation
Shamiul Alam, Md Shafayat Hossain, Ahmedullah Aziz; A cryogenic memory array based on superconducting memristors. Appl. Phys. Lett. 23 August 2021; 119 (8): 082602. https://doi.org/10.1063/5.0060716
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