Experimental creation and annihilation of nonvolatile magnetic skyrmions using voltage control of magnetic anisotropy without an external magnetic field
arXiv:1904.00701 · doi:10.1038/s41928-020-0432-x
Abstract
In this work, we utilize voltage controlled magnetic anisotropy (VCMA) to manipulate magnetic skyrmions that are fixed in space. Memory devices based on this strategy can potentially be of smaller footprint and better energy efficiency than current-controlled motion-based skyrmionic devices. To demonstrate VCMA induced manipulation of skyrmions, we fabricate antiferromagnet/ferromagnet/oxide heterostructure films where skyrmions can be stabilized without any external magnetic field due to the presence of exchange bias. These isolated skyrmions were annihilated by applying a voltage pulse that increased PMA. On the other hand, decreasing PMA promoted formation of more skyrmions. Furthermore, skyrmions can be created from chiral domains by increasing PMA of the system. To corroborate our experimental observations, we performed micromagnetic simulation. The proposed method could potentially lead to novel skyrmion-based memory devices.
References in corpus (27)
- Skyrmion Lattice in a Chiral Magnet
- The design and verification of Mumax3
- Observation of room temperature magnetic skyrmions and their current-driven dynamics in ultrathin Co films
- Blowing Magnetic Skyrmion Bubbles
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- Direct Observation of the Skyrmion Hall Effect
- 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
- Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
- Magnetic skyrmion artificial synapse for neuromorphic computing
- Electric field driven switching of individual magnetic skyrmions
- Thermally Driven Ratchet Motion of Skyrmion Microcrystal and Topological Magnon Hall Effect
- Field-free deterministic ultra fast creation of skyrmions by spin orbit torques
- Electrical signature of individual magnetic skyrmions in multilayered systems
- The skyrmion switch: turning magnetic skyrmion bubbles on and off with an electric field
- Controlling Dzyaloshinskii-Moriya Interaction via Chirality Dependent Layer Stacking, Insulator Capping and Electric Field
- A skyrmion-based spin-torque nano-oscillator
- Skyrmion Gas Manipulation for Probabilistic Computing
- Domain structure in CoFeB thin films with perpendicular magnetic anisotropy
- Electric field-induced creation and directional motion of domain walls and skyrmion bubbles
- Dzyaloshinskii Moriya interaction across antiferromagnet / ferromagnet interface
- Skyrmion production on demand by homogeneous DC currents
- Voltage controlled core reversal of fixed magnetic skyrmions without a magnetic field
- Resonate and Fire Neuron with Fixed Magnetic Skyrmions
- Skyrmion mediated voltage controlled switching of ferromagnets for reliable and energy efficient 2-terminal memory
- Energy efficient and fast reversal of a fixed skyrmions with spin current assisted by voltage controlled magnetic anisotropy
Cited by in corpus (33)
- All-Electrical Skyrmionic Bits in a Chiral Magnetic Tunnel Junction
- Computing and Memory Technologies based on Magnetic Skyrmions
- Ferroelectric control of magnetic skyrmions in two-dimensional van der Waals heterostructures
- Straintronics: Manipulating the Magnetization of Magnetostrictive Nanomagnets with Strain for Energy-Efficient Applications
- Switching intrinsic magnetic skyrmions with controllable magnetic anisotropy in van der Waals multiferroic heterostructures
- Current-Controlled Topological Magnetic Transformations in a Nanostructured Kagome Magnet
- Neuromorphic weighted sums with magnetic skyrmions
- Voltage control of skyrmions: creation, annihilation and zero-magnetic field stablization
- Skyrmion-Magnetic Tunnel Junction Synapse with Mixed Synaptic Plasticity for Neuromorphic Computing
- Laminar and transiently disordered dynamics of a magnetic skyrmion pipe flow
- Quantum Control of Spin Qubits Using Nanomagnets
- Topological Hall Effect and Skyrmion-like Bubbles at a Charge-transfer Interface
- Solid-state lithium-ion supercapacitor for voltage control of skyrmions
- Skyrmion-mediated Nonvolatile Ternary Memory
- Dynamic Skyrmion-Mediated Switching of Perpendicular MTJs: Scaling to 20 nm with Thermal Noise
- Skyrmion based energy efficient straintronic physical reservoir computing
- Current-induced nucleation and motion of zero field skyrmion
- Modulation of skyrmionic magnetic textures in two-dimensional vdW materials and their heterostructures
- Robust skyrmion mediated reversal of ferromagnetic nanodots of 20 nm lateral dimension with high Ms and moderate DMI
- Skyrmionics in correlated oxides
- Electric-field-induced formation and annihilation of skyrmions in two-dimensional magnet
- Transport of skyrmions by surface acoustic waves
- Spintronic Physical Reservoir for Autonomous Prediction and Long-Term Household Energy Load Forecasting
- Ultra-sensitive voltage-controlled skyrmion-based spintronic diode
- Ultrasensitive Sub-monolayer Palladium Induced Chirality Switching and Topological Evolution of Skyrmions
- Universal quantum computing based on magnetic domain wall qubits
- Quantized Non-Volatile Nanomagnetic Synapse based Autoencoder for Efficient Unsupervised Network Anomaly Detection
- Multifunctional Oxides for Topological Magnetic Textures by Design
- Magneto-Ionic Physical Reservoir Computing
- Length-scale independent skyrmion and meron Hall angles
- Proximal quantum control of spin and spin ensemble with highly localized control field from skyrmions
- Real-time dynamics of VCMA-assisted switching of magnetic tunnel junctions
- Role of magnetic anisotropy constant orders and thermal noise on skyrmion formation in the Co/Pt square nanostructure