Results 101 to 110 of about 403,773 (279)

Temperature‐Induced Nonvolatile Switching through Thermal Hysteresis in a Gd3Fe5O12/Ho3Fe5O12 Exchange‐Coupled Rare‐Earth Iron Garnet Bilayer

open access: yesAdvanced Functional Materials, EarlyView.
Reducing power consumption in spintronic memory remains a major challenge due to the need for high current densities. A bilayer of gadolinium and holmium iron garnets enables purely temperature‐induced, nonvolatile magnetic switching with bistable states within a ±25 K range. This approach achieves up to 66‐fold lower energy use than current spin–orbit
Junseok Kim   +3 more
wiley   +1 more source

A spin torque meter with magnetic facet domains

open access: yesNature Communications, 2018
Spin torques with different origins enable the magnetic domain wall motion, but the contributions are hard to be distinguished. Here, the authors show the method to measure both spin-magnetization transfer torque and spin–orbit torque by using mountain ...
Kyoung-Woong Moon   +8 more
doaj   +1 more source

Spin–orbit torque characterization in a nutshell

open access: yesAPL Materials, 2021
Spin current and spin torque generation through the spin–orbit interactions in solids, of bulk or interfacial origin, is at the heart of spintronics research.
Minh-Hai Nguyen, Chi-Feng Pai
doaj   +1 more source

Interfacial spin-orbit torque without bulk spin-orbit coupling

open access: yes, 2016
An electric current in the presence of spin-orbit coupling can generate a spin accumulation that exerts torques on a nearby magnetization. We demonstrate that, even in the absence of materials with strong bulk spin-orbit coupling, a torque can arise ...
Babroski, Christopher J.   +8 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Absence of orbital current torque in Ta/ferromagnet bilayers

open access: yesNature Communications
It has become a heated debate as to whether the orbital Hall effect of a material could generate a non-local orbital current and a non-zero spin-orbit torque on an adjacent magnetic layer.
Qianbiao Liu, Lijun Zhu
doaj   +1 more source

Intrinsic Spin Torque Without Spin-Orbit Coupling

open access: yes, 2015
We derive an intrinsic contribution to the non-adiabatic spin torque for non-uniform magnetic textures. It differs from previously considered contributions in several ways and can be the dominant contribution in some models.
Kim, Kyoung-Whan   +3 more
core   +2 more sources

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

open access: yesAdvanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan   +7 more
wiley   +1 more source

Symmetry-reduced topological interface for unleashing a multidirectional spin-orbit torque

open access: yesCommunications Physics
Current-induced spin-orbit torque at heavy metal/ferromagnet interfaces plays a critical role in modern spintronics. The challenges in relevant research are to enhance the conversion efficiency and generate unconventional torque components.
Satoshi Sugimoto   +4 more
doaj   +1 more source

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