Programmable skyrmion-based logic gates in a single nanotrack
Laichuan Shen, Yan Zhou, Ka Shen
Abstract
Programmable logic devices with multiple functions are key ingredients in information technology. Here we propose a multifunction logic device based on the current-driven skyrmion motion in a single nanotrack, where the spatially modulated Dzyaloshinskii-Moriya interaction introduces a potential barrier to the skyrmion. Three stable stages of the skyrmion location under a driving current of different magnitudes are demonstrated at room temperature through micromagnetic simulations, according to which we implement all necessary logic gates for computing applications. Our proposal provides a feasible scheme to design skyrmion-based programmable logic devices.
Topics & Concepts
SkyrmionProgrammable logic deviceLogic gatePhysicsProgrammable logic arrayField-programmable gate arrayScheme (mathematics)Key (lock)AND gateComputer scienceAlgorithmQuantum mechanicsComputer hardwareMathematicsMathematical analysisComputer securityMagnetic properties of thin filmsQuantum and electron transport phenomenaAdvanced Memory and Neural Computing