Memory functions of magnetic skyrmions

Abstract

Magnetic skyrmion, a swirling spin texture, in chiral magnets is characterized by (i) nano-scale size ($\sim$1nm -- 100nm), (ii) topological stability, and (iii) gyro-dynamics. These features are shown to be advantageous for (a) high-density data-storage, (b) nonvolatile memory, and (c) ultra-low current and energy cost manipulation, respectively. By the numerical simulations of Landau-Lifshitz-Gilbert equation, the elementary functions of skyrmions are demonstrated aiming at the design principles of skyrmionic memory devices.

References in corpus (7)

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Cited by in corpus (11)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Interface-driven topological Hall effect in SrRuO${}_3$-SrIrO${}_3$ bilayer
• Magnetic skyrmion-based synaptic devices
• Hedgehog-lattice spin texture in classical Heisenberg antiferromagnets on the breathing pyrochlore lattice
• Electric transport in three-dimensional Skyrmion/monopole crystal
• Fundamental Theory of Current-Induced Motion of Magnetic Skyrmions
• Skyrmion Crystal and Phase Transition in Magneto-Ferroelectric Superlattices: Dzyaloshinskii-Moriya Interaction in a Frustrated $J_1-J_2$ Model
• Transformation of a cellular skyrmion to polyomino-like structures
• Uniaxial Pressure Effects, Phase Diagram, and Tricritical Point in the Centrosymmetric Skyrmion Lattice Magnet GdRu${}_2$Si${}_2$
• Pressure Tuning of Collapse of Helimagnetic Structure in Au${}_2$Mn
• Field-induced Multi-$\vec{\mathbf{Q}}$ States in a Pyrochlore Heisenberg Magnet