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Single Abrikosov vortices as quantized information bits

Author

Listed:
  • T. Golod

    (Stockholm University, AlbaNova University Center)

  • A. Iovan

    (Stockholm University, AlbaNova University Center)

  • V. M. Krasnov

    (Stockholm University, AlbaNova University Center)

Abstract

Superconducting digital devices can be advantageously used in future supercomputers because they can greatly reduce the dissipation power and increase the speed of operation. Non-volatile quantized states are ideal for the realization of classical Boolean logics. A quantized Abrikosov vortex represents the most compact magnetic object in superconductors, which can be utilized for creation of high-density digital cryoelectronics. In this work we provide a proof of concept for Abrikosov-vortex-based random access memory cell, in which a single vortex is used as an information bit. We demonstrate high-endurance write operation and two different ways of read-out using a spin valve or a Josephson junction. These memory cells are characterized by an infinite magnetoresistance between 0 and 1 states, a short access time, a scalability to nm sizes and an extremely low write energy. Non-volatility and perfect reproducibility are inherent for such a device due to the quantized nature of the vortex.

Suggested Citation

  • T. Golod & A. Iovan & V. M. Krasnov, 2015. "Single Abrikosov vortices as quantized information bits," Nature Communications, Nature, vol. 6(1), pages 1-5, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9628
    DOI: 10.1038/ncomms9628
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    Cited by:

    1. Taras Golod & Vladimir M. Krasnov, 2022. "Demonstration of a superconducting diode-with-memory, operational at zero magnetic field with switchable nonreciprocity," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Li, Jun-Jie & Zhang, Hui-Cong, 2023. "Stability and adaptive evolution of higher-order vector vortex solitons in thermally nonlinear media with tunable transverse size," Chaos, Solitons & Fractals, Elsevier, vol. 177(C).

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