Results 1 to 10 of about 7,833 (239)

Programmable Topological Magnetic Textures in Above-Room-Temperature 2D Ferromagnet Fe₃GaTe₂. [PDF]

Adv Sci (Weinh)
This work demonstrates the programmable generation and deterministic modulation of magnetic skyrmion bags with high‐order topological numbers in the above‐room‐temperature 2D ferromagnet Fe3GaTe2 (FGaT) via current‐pulse control. Furthermore, highly efficient electrical manipulation and current‐driven parallel motion of these high‐order topological ...
Shi H, Xi Y, Zhang J, Liu J, Ren Z, Zhang S, Hao W, Feng H, Du Y.   +8 more
europepmc   +2 more sources

Observation of Magnetic-Anisotropy Crossover and High-Temperature Skyrmions in the Dirac Magnet Fe₃Ge with a Distorted Kagome Lattice. [PDF]

Adv Sci (Weinh)
A temperature‐driven magnetic anisotropy crossover is revealed in the Dirac kagome magnet Fe3Ge with a distorted kagome lattice. The transition from easy‐plane to easy‐axis magnetic anisotropy stabilizes robust Bloch‐type skyrmions over an exceptionally wide temperature window of 375–650 K.
Huang Y, Lv X, Li B, Xu C, Alltrin D, Ma X, Yang W, Zhou W, Xing X, Lin WC, Sankar R, Smidman M, Cao S, Qian D, Che R, Xu X.   +15 more
europepmc   +2 more sources

Room-Temperature Skyrmionic Synapse in 2D Ferromagnet Fe₃GaTe₂ Operating via Collective Spin Texture Transformation. [PDF]

Adv Mater
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Huang J, Zhu T, Cai P, Ma X, Wang Z, Zhang R, Hao Y, Lu J, He L, Xu J, Zhang Y, Jiang W, Tao J, Lei S, Parchinskiy P, Teng J, Wang L, Niu W, Santos EJG, Zhang X, Li P.   +20 more
europepmc   +2 more sources

Van der Waals Heterostructures for Next-Generation Spintronics: Multiferroic-Mediated Magnetoelectric Properties. [PDF]

Adv Sci (Weinh)
As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Lee D, Yang J, Oh I, Lee S.
europepmc   +2 more sources

Symmetry-Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies. [PDF]

Adv Sci (Weinh)
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Yang J, Feng P, Han F, Chen W, Jin Z, Ni J, Yang Y, Zhang A, Vandenbosch GAE, Verellen N, Janssens E, Wang J, Bai B, Qiu CW, Zheng X.   +14 more
europepmc   +2 more sources

Current‐Driven Nonreciprocal Response of Nonequilibrium Skyrmions [PDF]

Advanced Science
Electrical control of spins and their collective textures, such as topologically protected skyrmions, is highly desirable for unlocking their potential in future electronic technologies. Here, we design and fabricate thin films of FeGe and Co8.5Zn8.5Mn3,
Xiuzhen Yu, Soju Furuta, Xichao Zhang, Yi‐Ling Chiew, Kiyomi Nakajima, Kosuke Karube, Naoya Kanazawa, Yasujiro Taguchi, Yoshinori Tokura, Masahito Mochizuki, Fumitaka Kagawa   +10 more
doaj   +2 more sources

Nontraditional Movement Behavior of Skyrmion in a Circular-Ring Nanotrack

Nanomaterials, 2023
Magnetic skyrmions are considered promising candidates for use as information carriers in future spintronic devices. To achieve the development of skyrmion-based spintronic devices, a reasonable and feasible nanotrack is essential.
Na Cai, Xin Zhang, Yong Hu, Yan Liu
doaj   +1 more source

Stabilization and racetrack application of asymmetric Néel skyrmions in hybrid nanostructures

Scientific Reports, 2023
Magnetic skyrmions, topological quasiparticles, are small stable magnetic textures that possess intriguing properties and potential for data storage applications.
Mateusz Zelent, Mathieu Moalic, Michal Mruczkiewicz, Xiaoguang Li, Yan Zhou, Maciej Krawczyk   +5 more
doaj   +1 more source

Manipulation of Skyrmion Motion Dynamics for Logical Device Application Mediated by Inhomogeneous Magnetic Anisotropy

Nanomaterials, 2022
Magnetic skyrmions are promising potential information carriers for future spintronic devices owing to their nanoscale size, non-volatility and high mobility.
Jia-Qiang Lin, Ji-Pei Chen, Zhen-Yu Tan, Yuan Chen, Zhi-Feng Chen, Wen-An Li, Xing-Sen Gao, Jun-Ming Liu   +7 more
doaj   +1 more source

Nucleation and manipulation of single skyrmions using spin-polarized currents in antiferromagnetic skyrmion-based racetrack memories

Scientific Reports, 2022
In this work, an ultrafast nucleation of an isolated anti-ferromagnetic (AFM) skyrmion was reported in an AFM layer with DMi strengths of 0.47 $$-$$ - 0.32 $$\mathrm{mJ}/{\mathrm{m}}^{2}$$ mJ / m 2 using spin-transfer torque by locally injecting pure ...
Hamza Belrhazi, Mohamed El Hafidi
doaj   +1 more source