ER-05 Swift Skyrmion as True Random Number Generator
Creators: AJIN JOY
SOUBHIK KAYAL
P. S. ANIL KUMAR
Publisher: name: IEEE
Year: 2025

The next-generation data storage devices using skyrmions is based on their motion through nanowires consisting of metallic multi-layers with high spin-orbit coupling and DMI(Dzyaloshinskii Moriya Interaction). Skyrmions are quantized swirling spin structures observed in many systems even at room temperatures. Our system with suitably controlled magnetic anisotropy and inter-skyrmion repulsion helped to move the skyrmion at a velocity of 260 m/s at room temperature. In addition, we present a method for generating random numbers using these exceptionally fast skyrmions at room temperature. In a world that revolves around one-time-passwords and cryptocurrencies, a massive amount of random number generations with higher efficiency is a requisite. Using the newly introduced method, 10 million truly random numbers per second can be generated. These results identify ferromagnetic ultrafast skyrmions as an intriguing candidate for true random number generation.References: 1. Nagaosa Naoto and Tokura Yoshinori. Topological properties and dynamics of magnetic skyrmions. Nat.Nanotechnol 8(12):899, 2013. 2. Bogdanov and A. Hubert.Thermodynamically stable magnetic vortex states in magnetic crystals. J.Magn.Magn.Mat 138(3):269, 1994. 3. Shijiang Luo and Long You. Skyrmion devices for memory and logic applications. APL Mat., 9(5):050901, 2021. 4. T.H.R. Skyrme. A unified field theory of mesons and baryons. Nucl. Phy 31:556–569, 1962. 5. Stuart Parkin and See-Hun Yang. Memory on the racetrack. Nat.Nanotechnol., 10:195–8, 2015. 6. Stuart S. P. Parkin, Masamitsu Hayashi, and Luc Thomas. Magnetic domain-wall racetrack memory. Science, 320(5873):190–194, 2008. 7. Berk Sunar. True Random Number Generators for Cryptography, pages 55–73. Springer US, Boston, MA, 2009. 8. Mario Stip cevi c and C etin Ko c. True Random Number Generators, pages 275–315. Nov 2014.
The next-generation data storage devices using skyrmions is based on their motion through nanowires consisting of metallic multi-layers with high spin-orbit coupling and DMI(Dzyaloshinskii Moriya Interaction). Skyrmions are quantized swirling spin structures observed in many systems even at room temperatures. Our system with suitably controlled magnetic anisotropy and inter-skyrmion repulsion helped to move the skyrmion at a velocity of 260 m/s at room temperature. In addition, we present a method for generating random numbers using these exceptionally fast skyrmions at room temperature. In a world that revolves around one-time-passwords and cryptocurrencies, a massive amount of random number generations with higher efficiency is a requisite. Using the newly introduced method, 10 million truly random numbers per second can be generated. These results identify ferromagnetic ultrafast skyrmions as an intriguing candidate for true random number generation.References: 1. Nagaosa Naoto and Tokura Yoshinori. Topological properties and dynamics of magnetic skyrmions. Nat.Nanotechnol 8(12):899, 2013. 2. Bogdanov and A. Hubert.Thermodynamically stable magnetic vortex states in magnetic crystals. J.Magn.Magn.Mat 138(3):269, 1994. 3. Shijiang Luo and Long You. Skyrmion devices for memory and logic applications. APL Mat., 9(5):050901, 2021. 4. T.H.R. Skyrme. A unified field theory of mesons and baryons. Nucl. Phy 31:556–569, 1962. 5. Stuart Parkin and See-Hun Yang. Memory on the racetrack. Nat.Nanotechnol., 10:195–8, 2015. 6. Stuart S. P. Parkin, Masamitsu Hayashi, and Luc Thomas. Magnetic domain-wall racetrack memory. Science, 320(5873):190–194, 2008. 7. Berk Sunar. True Random Number Generators for Cryptography, pages 55–73. Springer US, Boston, MA, 2009. 8. Mario Stip cevi c and C etin Ko c. True Random Number Generators, pages 275–315. Nov 2014.