Results 81 to 90 of about 403,773 (279)

Spin pumping and large field-like torque at room temperature in sputtered amorphous WTe2−x films

open access: yesAPL Materials, 2020
We studied the spin-to-charge and charge-to-spin conversion at room temperature in sputtered WTe2−x (x = 0.8) (t)/Co20Fe60B20(6 nm) heterostructures.
Yihong Fan   +9 more
doaj   +1 more source

Impact of inherent energy barrier on spin-orbit torques in magnetic-metal/semimetal heterojunctions

open access: yesNature Communications, 2023
Spintronic devices are based on heterojunctions of two materials with different magnetic and electronic properties. Although an energy barrier is naturally formed even at the interface of metallic heterojunctions, its impact on spin transport has been ...
Tenghua Gao   +11 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

Consistency in Formulation of Spin Current and Torque Associated with a Variance of Angular Momentum

open access: yes, 2005
Stimulated generally by recent interest in the novel spin Hall effect, the nonrelativistic quantum mechanical conserved currents, taken into account of spin-orbit coupling, are rigorously formulated based on the symmetries of system and Noether' theorem.
J. J. Sakurai   +5 more
core   +1 more source

Neuromorphic Computing with Emerging Antiferromagnetic Ordering in Spin–Orbit Torque Devices

open access: yesNano letters (Print)
Field-free switching (FFS) and spin–orbit torque (SOT)-based neuromorphic characteristics were realized in a W/Pt/Co/NiO/Pt heterostructure with a perpendicular exchange bias (HEB) for brain-inspired neuromorphic computing (NC).
D. Ojha   +5 more
semanticscholar   +1 more source

Field-free approaches for deterministic spin–orbit torque switching of the perpendicular magnet

open access: yesMaterials Futures, 2022
All-electrical driven magnetization switching attracts much attention in next-generation spintronic memory and logic devices, particularly in magnetic random-access memory (MRAM) based on the spin–orbit torque (SOT), i.e.
Hao Wu   +9 more
semanticscholar   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

open access: yesAdvanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Voltage-circuit analysis in spin-torque ferromagnetic resonance [PDF]

open access: yesAPL Materials
Spin–orbit torque (SOT) enables efficient control of magnetization via spin–orbit coupling effects, so that accurate quantification of its efficiency is crucial for the development of spin–orbit devices.
Ki Hyuk Han   +9 more
doaj   +1 more source

Magnon-Mediated Dzyaloshinskii-Moriya Torque in Homogeneous Ferromagnets

open access: yes, 2014
In thin magnetic layers with structural inversion asymmetry and spin-orbit coupling, a Dzyaloshinskii-Moriya interaction arises at the interface. When a spin wave current ${\bf j}_m$ flows in a system with a homogeneous magnetization {\bf m}, this ...
Lee, Hyun-Woo   +4 more
core   +1 more source

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

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