Results 51 to 60 of about 857,079 (204)

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

Spin-orbit torques due to extrinsic spin-orbit scattering of topological insulator surface states: out-of-plane magnetization

JPhys Materials, 2022
The origins of the spin-orbit torque (SOT) at ferromagnet/topological insulator interfaces are incompletely understood. The theory has overwhelmingly focussed on the Edelstein effect due to the surface states in the presence of a scalar scattering ...
Mohsen Farokhnezhad, Reza Asgari, Dimitrie Culcer   +2 more
doaj   +1 more source

Deterministic Field‐Free Switching of Perpendicular Magnetization by Bulk Mirror Symmetry Broken Bi1−xSbx (012) with High Spin Hall Conductivity

Advanced Materials, EarlyView.
Crystal orientation and domain engineering enable bulk mirror symmetry breaking in Bi1−xSbx, resulting in ultralow current‐induced switching of perpendicular magnetization without an external field. By exploiting single‐domain Bi1−xSbx (012), the authors demonstrate an out‐of‐plane spin Hall conductivity of ∼1.12×105ℏ2eΩ−1m−1$ \sim \!1.12 \ensuremath ...
Seungwon Rho, Youngmin Lee, Jaeseok Huh, Jaehan Park, Hyeong‐Jun Son, Dowoo Pyeon, Mann‐Ho Cho   +6 more
wiley   +1 more source

Spin-orbit torque driven chiral magnetization reversal in ultrathin nanostructures

, 2015
International audienceWe show that the spin-orbit torque induced magnetization switching in nanomagnets presenting Dzyaloshinskii-Moriya (DMI) interaction is governed by a chiral domain nucleation at the edges.
Gambardella, Pietro, Gaudin, Gilles, Garello, Kevin, Mikuszeit, N., Boulle, Olivier, Buda-Prejbeanu, Liliana Daniela, Miron, Ioan Mihai   +6 more
core   +1 more source

Alloying‐Controlled Tuning of Interfacial Spin‐Orbit Interaction and Magnetic Damping in Crystalline FeCo Thin Films Grown on GaAs(001)

Advanced Materials, EarlyView.
The interfacial spin‐orbit interaction in single‐crystalline Fe1−xCox thin films grown on GaAs(001) can be continuously tuned via alloying. Using spin‐orbit ferromagnetic resonance, the authors find that the interfacial spin‐orbit fields exhibit a nonmonotonic dependence on Co concentration, with a minimum at 20% Co. ABSTRACT The discovery of intrinsic
Hongrui Lao, Matthias Kronseder, Zhe Yuan, Thomas Narr, Thomas N. G. Meier, Nadine Mundigl, Xianlin Qu, Zhongchang Wang, Christian H. Back, Lin Chen   +9 more
wiley   +1 more source

Spin-orbit torque from a ferromagnetic metal

, 2019
The switching of magnetization by current-induced spin-orbit torque (SOT) has potential applications for energy-efficient spintronic devices. In the past, most conventional works have been focused on SOT in heavy metals. Here the SOT from a ferromagnetic
Liu, Yuxiang, Razavi, Seyed Armin, Wu, Hao, Wong, Kin L., Yin, Gen, Li, Xiang, Shao, Qiming, Wang, Kang L.   +7 more
core   +1 more source

Materials Requirements of High-Speed and Low-Power Spin-Orbit-Torque Magnetic Random-Access Memory

IEEE Journal of the Electron Devices Society, 2020
As spin-orbit-torque magnetic random-access memory (SOT-MRAM) is gathering great interest as the next-generation low-power and high-speed on-chip cache memory applications, it is critical to analyze the magnetic tunnel junction (MTJ) properties needed to
Xiang Li, Shy-Jay Lin, Mahendra Dc, Yu-Ching Liao, Chengyang Yao, Azad Naeemi, Wilman Tsai, Shan X. Wang   +7 more
doaj   +1 more source

Current‐Induced Domain Wall Dynamics in Pt/Co/Ni/Co Nanoribbons With Curvilinear Cross‐Sections

Advanced Materials, EarlyView.
3D curvilinear magnetic racetrack nanoribbons are formed with concave and convex cross‐sections using an advanced multi‐photon 3D printer. The curvature is shown to strongly affect current‐induced domain wall motion along the nanoribbons. In nanoribbons with cross‐sections that have both concave and convex segments, the velocities of domain walls with ...
Tiange Dong, Jitul Deka, Chi Fang, André M. A. Farinha, Yicheng Guan, See‐Hun Yang, Stuart S. P. Parkin   +6 more
wiley   +1 more source

Enhanced Field‐Like Torque Generated from the Anisotropic Spin‐Split Effect in Triple‐Domain RuO2 for Energy‐Efficient Spin–Orbit Torque Magnetic Random‐Access Memory

Advanced Science
Spin‐current generation via the anisotropic spin‐split effect has been predicted in antiferromagnetic RuO2, where the symmetry of RuO2 plays a critical role in spin–orbit torque (SOT).
Thi Van Anh Nguyen, Hiroshi Naganuma, Thi Ngoc Huyen Vu, Samik DuttaGupta, Yoshiaki Saito, Duong Vu, Yasushi Endo, Shoji Ikeda, Tetsuo Endoh   +8 more
doaj   +1 more source

Silicon Nitride Resistive Memories

Advanced Electronic Materials, EarlyView.
Amorphous SiNx is an attractive resistance switching material for ReRAM applications due to its physicochemical properties, such as humidity resistance, low oxygen diffusivity, and is used as a metal diffusion blocker. By modifying the ratio between N and Si atoms, the microstructure of the SiNx is affected, rendering it possible to change the ...
Alexandros‐Eleftherios Mavropoulis, Nikolaos Vasileiadis, Iosif‐Angelos Fyrigos, Emmanouil Stavroulakis, Caroline Bonafos, Pascal Normand, Georgios Ch. Sirakoulis, Panagiotis Dimitrakis   +7 more
wiley   +1 more source