Single Abrikosov vortices as quantized information bits

T. Golod, A. Iovan and V. M. Krasnov ()
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T. Golod: Stockholm University, AlbaNova University Center
A. Iovan: Stockholm University, AlbaNova University Center
V. M. Krasnov: Stockholm University, AlbaNova University Center

Nature Communications, 2015, vol. 6, issue 1, 1-5

Abstract: 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.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9628

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DOI: 10.1038/ncomms9628

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