3.8k citations · 4.5k across the 25 of their papers we have counts for
26 papers
Near-Landauer Reversible Skyrmion Logic with Voltage-Based Propagation
Benjamin W. Walker, Alexander J. Edwards, Xuan Hu +3
Magnetic skyrmions are topological quasiparticles whose non-volatility, detectability, and mobility make them exciting candidates for low-energy computing. Previous works have demo…
Absence of Walker breakdown in the dynamics of chiral Neel domain walls driven by in-plane strain gradients
Mouad Fattouhi, Felipe Garcia-Sanchez, Rocio Yanes +3
We investigate theoretically the motion of chiral Néel domain walls in perpendicularly magnetized systems driven by in-plane strain gradients. We show that such strain drives domai…
A Ti/Pt/Co multilayer stack for transfer function based magnetic force microscopy calibrations
Baha Sakar, Sibylle Sievers, Alexander Fernandez Scarioni +4
Magnetic force microscopy is a widespread technique for imaging magnetic structures with a resolution of some 10 nanometers. MFM can be calibrated to obtain quantitative spatially…
High-Speed CMOS-Free Purely Spintronic Asynchronous Recurrent Neural Network
Pranav O. Mathews, Christian B. Duffee, Abel Thayil +8
Neuromorphic computing systems overcome the limitations of traditional von Neumann computing architectures. These computing systems can be further improved upon by using emerging t…
Skyrmion Logic Clocked via Voltage Controlled Magnetic Anisotropy
Benjamin W. Walker, Can Cui, Felipe Garcia-Sanchez +3
Magnetic skyrmions are exciting candidates for energy-efficient computing due to their non-volatility, detectability,and mobility. A recent proposal within the paradigm of reversib…
Passive frustrated nanomagnet reservoir computing
Alexander J. Edwards, Dhritiman Bhattacharya, Peng Zhou +10
Reservoir computing (RC) has received recent interest because reservoir weights do not need to be trained, enabling extremely low-resource consumption implementations, which could…
Domain Wall Leaky Integrate-and-Fire Neurons with Shape-Based Configurable Activation Functions
Wesley H. Brigner, Naimul Hassan, Xuan Hu +7
Complementary metal oxide semiconductor (CMOS) devices display volatile characteristics, and are not well suited for analog applications such as neuromorphic computing. Spintronic…
Measuring interfacial Dzyaloshinskii-Moriya interaction in ultra-thin magnetic films
Michaela Kuepferling, Arianna Casiraghi, Gabriel Soares +7
The Dzyaloshinskii-Moriya interaction (DMI), being one of the origins of chiral magnetism, is currently attracting considerable attention in the research community focusing on appl…
Threshold Logic with Current-Driven Magnetic Domain Walls
Xuan Hu, Brighton A. Hill, Felipe Garcia-Sanchez +1
The recent demonstration of current-driven magnetic domain wall logic [Z. Luo et al., Nature 579:214] was based on a three-input logic gate that was identified as a reconfigurable…
Dynamic Skyrmion-Mediated Switching of Perpendicular MTJs: Scaling to 20 nm with Thermal Noise
Md Mahadi Rajib, Walid Al Misba, Dhritiman Bhattacharya +2
One method of creating and annihilating skyrmions in confined geometries is to use Voltage-Controlled Magnetic Anisotropy (VCMA) [1, 2, 3]. Previous study shows that robust voltage…
CMOS-Free Multilayer Perceptron Enabled by Four-Terminal MTJ Device
Wesley H. Brigner, Naimul Hassan, Xuan Hu +5
Neuromorphic computing promises revolutionary improvements over conventional systems for applications that process unstructured information. To fully realize this potential, neurom…
Modal frustration and periodicity breaking in artificial spin ice
R. Puttock, A. Manzin, V. Neu +4
Here an artificial spin ice (ASI) lattice is introduced that exhibits unique Ising and non-Ising behavior under specific field switching protocols because of the inclusion of coupl…
Shape-based Magnetic Domain Wall Drift for an Artificial Spintronic Leaky Integrate-and-Fire Neuron
Wesley H. Brigner, Naimul Hassan, Lucian Jiang-Wei +7
Spintronic devices based on domain wall (DW) motion through ferromagnetic nanowire tracks have received great interest as components of neuromorphic information processing systems.…
Toggle Spin-Orbit Torque MRAM with Perpendicular Magnetic Anisotropy
Naimul Hassan, Susana P. Lainez-Garcia, Felipe Garcia-Sanchez +1
Spin-orbit torque (SOT) is a promising switching mechanism for magnetic random-access memory (MRAM) as a result of the potential for improved switching speed and energy-efficiency.…
Individual skyrmion manipulation by local magnetic field gradients
Arianna Casiraghi, Héctor Corte-León, Mehran Vafaee +6
Magnetic skyrmions are topologically protected spin textures, stabilised in systems with strong Dzyaloshinskii-Moriya interaction (DMI). Several studies have shown that electrical…
Skyrmion Logic System for Large-Scale Reversible Computation
Maverick Chauwin, Xuan Hu, Felipe Garcia-Sanchez +4
Computational reversibility is necessary for quantum computation and inspires the development of computing systems in which information carriers are conserved as they flow through…
Dynamics and morphology of chiral magnetic bubbles in perpendicularly magnetized ultra-thin films
Bhaskarjyoti Sarma, Felipe Garcia-Sanchez, S. Ali Nasseri +2
We study bubble domain wall dynamics using micromagnetic simulations in perpendicularly magnetized ultra-thin films with disorder and Dzyaloshinskii-Moriya interaction. Disorder is…
Nonreciprocal flexural dynamics of Dzyaloshinskii domain walls
Rémy Soucaille, Felipe Garcia-Sanchez, Joo-Von Kim +2
We revisit the description of ferromagnetic domain wall dynamics through an extended one-dimensional model by allowing flexural distortions of the wall during its motion. This is t…
Influence of interlayer coupling on the spin torque driven excitations in a spin torque oscillator
M. Romera, E. Monteblanco, F. Garcia-Sanchez +3
The influence of dynamic interlayer interactions on the spin torque driven and damped excitations are illustrated for a three layer macrospin model system that corresponds to a sta…
Spin Wave Eigenmodes of Dzyaloshinskii Domain Walls
Pablo Borys, Felipe Garcia-Sanchez, Joo-Von Kim +1
A theory for the spin wave eigenmodes of a Dzyaloshinskii domain wall is presented. These walls are Néel-type domain walls that can appear in perpendicularly-magnetized ultrathin f…
Curved magnonic waveguides based on domain walls
Felipe Garcia-Sanchez, Pablo Borys, Rémy Soucaille +3
The channeling of spin waves with domain walls in ultrathin ferromagnetic films is demonstrated theoretically and through micromagnetics simulations. It is shown that propagating e…
Current driven asymmetric magnetization switching in perpendicularly magnetized CoFeB/MgO heterostructures
Jacob Torrejon, Felipe Garcia-Sanchez, Tomohiro Taniguchi +4
The flow of in-plane current through ultrathin magnetic heterostructures can cause magnetization switching or domain wall nucleation owing to bulk and interfacial effects. Within t…
The design and verification of Mumax3
Arne Vansteenkiste, Jonathan Leliaert, Mykola Dvornik +2
We report on the design, verification and performance of mumax3, an open-source GPU-accelerated micromagnetic simulation program. This software solves the time- and space dependent…
Breathing modes of confined skyrmions in ultrathin magnetic dots
Joo-Von Kim, Felipe Garcia-Sanchez, Joao Sampaio +3
The dynamics of individual magnetic skyrmions confined in ultrathin film dots is studied theoretically. The systems considered are transition metal ferromagnets possessing perpendi…