Spin-wave mediated interactions for Majority Computation using Skyrmions and Spin-torque Nano-oscillators
arXiv:1902.06925 · doi:10.1016/j.jmmm.2019.165271
Abstract
Recent progress in all-electrical nucleation, detection and manipulation of magnetic skyrmions has unlocked the tremendous potential of skyrmion-based spintronic devices. Here, we show via micromagnetic simulations that the stable magnetic oscillations of STNO radiate spin waves (SWs) that can be scattered in the presence of skyrmions in the near vicinity. Interference between SWs emitted by the STNO and SWs scattered by the skyrmion gives rise to interesting dynamics that leads to amplification or attenuation of STNO's magnetic oscillations. In the presence of strong Dzyaloshinskii-Moriya interaction (DMI), the amplified magnetic oscillations evolve into a new skyrmion. These interactions between skyrmions and STNOs are found to be identical for both Neel-type and Bloch-type skyrmions, and are not observed between domain walls and STNOs. These findings offer a novel perspective in processing information using single skyrmions and we propose a 3-bit majority gate for logic applications.
Final Version
References in corpus (23)
- The design and verification of Mumax3
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmion at room temperature
- Skyrmions at room temperature : From magnetic thin films to magnetic multilayers
- Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
- Spin-Wave Modes and Their Intense Excitation Effects in Skyrmion Crystals
- A magnetic skyrmion as a non-linear resistive element - a potential building block for reservoir computing
- Magnon-skyrmion scattering in chiral magnets
- Electrical detection of magnetic skyrmions by non-collinear magnetoresistance
- Boltzmann Test of Slonczewski's Theory of Spin Transfer Torque
- A skyrmion-based spin-torque nano-oscillator
- Skyrmion Gas Manipulation for Probabilistic Computing
- Theory of magnon-skyrmion scattering in chiral magnets
- Breathing modes of confined skyrmions in ultrathin magnetic dots
- Magnetic Skyrmions on a Two-Lane Racetrack
- Perpendicular Reading of Single Confined Magnetic Skyrmions
- Domain wall-gated skyrmion logic
- Spin-Wave Spectrum in Magnetic Nanodot with Continuous Transition between Vortex, Bloch-type Skyrmion and Néel-type Skyrmion States
- Impact of the skyrmion spin texture on magnetoresistance
- Resonate and Fire Neuron with Fixed Magnetic Skyrmions
- Azimuthal Spin Wave Excitations in Magnetic Nanodots over the Soliton Background: Vortex, Bloch and Néel-like skyrmions
- Twisted skyrmion at domain boundaries and the method of image