Results 71 to 80 of about 30,381 (297)
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
Integrating all-optical switching with spintronics
Nature Communications, 2019 The high speed switching and energy efficiency nature grant all-optical switching (AOS) great potential for future photonic integrated spintronic devices.
M. L. M. Lalieu +2 more
doaj +1 more source
Semiclassical Propagation Along Curved Domain Walls
Multiscale Modeling & SimulationWe analyze the propagation of two-dimensional dispersive and relativistic wavepackets localized in the vicinity of the zero level set $Γ$ of a domain wall. The main applications we consider are a topologically non-trivial Dirac model and a similar but topologically trivial Klein-Gordon equation. The static domain wall models an interface separating two
openaire +3 more sources
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Chaotic proliferation of relativistic domain walls for reservoir computing
npj SpintronicsMagnetic domain walls in antiferromagnets have been proposed as key components for faster conventional information processing, thanks to their enhanced stability and ultrafast propagation.
J. A. Vélez +10 more
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Ultrathin Nanocrystalline Magnetic Wires
Crystals, 2017 The magnetic characteristics of FINEMET type glass-coated nanowires and submicron wires are investigated by taking into account the structural evolution induced by specific annealing all the way from a fully amorphous state to a nanocrystalline structure.
Horia Chiriac +5 more
doaj +1 more source
Domain wall propagation in Permalloy nanowires with a thickness gradient [PDF]
Superlattices and Microstructures, 2009 The domain wall nucleation and motion processes in Permalloy nanowires with a thickness gradient along the nanowire axis have been studied. Nanowires with widths, w = 250 nm to 3 um and a base thickness of t = 10 nm were fabricated by electron-beam lithography.
Petracic, O. +4 more
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Advanced Functional Materials, EarlyView.Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone +8 more
wiley +1 more source
Néel domain walls with bistable chirality in a perpendicularly magnetized ferrimagnetic insulator
Nature CommunicationsField-free spin-orbit torque-driven domain wall motion in magnetic thin films with perpendicular magnetic anisotropy (PMA) requires the domain walls to have Néel character.
Yixuan Song +5 more
doaj +1 more source
, 2010 4 páginas, 2 figuras.Micromagnetic simulations have been performed in uniaxial magnetic films with 2D array of asymmetric arrow shape holes. In order to understand the asymmetric pinning potential created by the holes, different boundary geometries ...
Sobrado, I. +6 more
core +1 more source