Results 101 to 110 of about 8,313 (238)

Current-induced skyrmion generation and dynamics in symmetric bilayers

Nature Communications, 2017
The creation of practical devices based on magnetic skyrmions depends on the development of methods to create and control stable individual skyrmions. Here, the authors present a bilayer device that uses dipolar interactions to stabilize skyrmions that ...
A. Hrabec, J. Sampaio, M. Belmeguenai, I. Gross, R. Weil, S. M. Chérif, A. Stashkevich, V. Jacques, A. Thiaville, S. Rohart   +9 more
doaj   +1 more source

Radiation Resilient Synthetic Antiferromagnets‐Based Neuromorphic Device for Sea Surface Temperature Reconstruction

Advanced Science, EarlyView.
By leveraging strong antiferromagnetic coupling, radiation‐tolerant synthetic antiferromagnetic synaptic devices are developed. Their intrinsic nonlinearity emulates neuronal activation, while linear and symmetric conductance modulation mimics synaptic plasticity.
Mingxu Song, Jiahao Liu, Ruisheng Hu, Teng Xu, Aihua Tang, Zhihong Zhu   +5 more
wiley   +1 more source

Vibrational modes of massive Skyrmions within the rational map ansatz [PDF]

, 2007
In this thesis, we study the vibrational modes of some Skyrmion solutions within the rational map approximation. When the Skyrme field is perturbed around a static solution, the radial and angular vibrations of the field are decoupled; this gives us two ...
Lin, Wen-Tsan
core  

Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmions at room temperature [PDF]

, 2016
Facing the ever-growing demand for data storage will most probably require a new paradigm. Nanoscale magnetic skyrmions are anticipated to solve this issue as they are arguably the smallest spin textures in magnetic thin films in nature.
V. Cros, Raabe, Jörg, Fert, A., George, Jean-marie (5200039), George, J.-M., Garcia, K., C. Moreau-Luchaire, J.-M. George, Wohlhüter, P., Fert, Albert (5200060), J. Sampaio, Sampaio, J., Moreau-Luchaire, Constance (5200048), Raabe, J., Bouzehouane, K., Vaz, C.A.F, Weigand, M. (5200054), C. A. F. Vaz, N. Reyren, Moutafis, Christoforos (5200069), Reyren, N., Moutafis, Christoforos; id_orcid, Deranlot, C., Wohlhüter, P. (5200033), Weigand, M., Van Horne, N, N. Van Horne, Warnicke, P., Moutafis, Christoforos, Sampaio, José (5200051), M. Weigand, Moutafi, C., Van Horne, N (5200036), Bouzehouane, Karim, C. Deranlot, J. Sampaio, José, Warnicke, P. (5200072), Cros, Vincent (5200066), K. Bouzehouane, Deranlot, Cyrile, Bouzehouane, Karim (5200042), George, Jean-marie, C. Moutafis, Moreau Luchaire, C., A. Fert, Reyren, Nicolas (5200063), Garcia, Karin, Moreau-Luchaire, C., Raabe, Jörg (5200030), George, J. M., Garcia, Karin (5200075), Vaz, C. A. F., Van Horne, N., P. Warnicke, Sampaio, José, P. Wohlhüter, Moutafis, C., Vaz, C., Horne, N. Van, Moreau-Luchaire, Constance, Cros, Vincent, Fert, Albert, Reyren, Nicolas, Deranlot, Cyrile (5200045), Cros, V., J. Raabe, Vaz, C.A.F., George, J., Vaz, C.A.F (5200057), K. Garcia   +69 more
core   +1 more source

Acoustic-driven magnetic skyrmion motion

Nature Communications
Magnetic skyrmions have great potential for developing novel spintronic devices. The electrical manipulation of skyrmions has mainly relied on current-induced spin-orbit torques.
Yang Yang, Le Zhao, Di Yi, Teng Xu, Yahong Chai, Chenye Zhang, Dingsong Jiang, Yahui Ji, Dazhi Hou, Wanjun Jiang, Jianshi Tang, Pu Yu, Huaqiang Wu, Tianxiang Nan   +13 more
doaj   +1 more source

Magnetic skyrmions: materials, manipulation, detection, and applications in spintronic devices

Materials Futures, 2023
Magnetic skyrmions are vortex-like spin configurations that possess nanometric dimensions, topological stability, and high controllability through various external stimuli.
Huai Zhang, Yajiu Zhang, Zhipeng Hou, Minghui Qin, Xingsen Gao, Junming Liu   +5 more
doaj   +1 more source

Voltage‐Reconfigurable Magneto‐Ionic Nanolayers in Dot Arrays for Probabilistic, Materials‐Engineered Security Primitives

Advanced Science, EarlyView.
A magneto‐ionic security‐by‐materials‐design strategy exploits voltage‐driven N3– migration in selectively contacted FeCoN dots, creating reconfigurable sub‐15 nm ferromagnetic sublayers with deterministic and/or probabilistic (single‐domain↔vortex) states, voltage‐tunable probabilities and fully stochastic orientation/chirality.
Irena Spasojevic, Federica Celegato, Alessandro Magni, Paola Tiberto, Jordi Sort   +4 more
wiley   +1 more source

Thermal Control of Concentric Topographies Patterned by Dynamic Electro‐Templated Generated Chiral Solitonic Structures

Advanced Science, EarlyView.
An electro‐templating strategy directs the relaxation of cholesteric finger loops into discrete concentric rings whose geometry is electrically programmed. The photopolymerized structures retain the topological defect pattern and, upon heating, show reversible, castle‐like surface modulation.
Jacques A. Peixoto, Hanqing Zhao, Dirk J. Broer, Ivan I. Smalyukh, Danqing Liu   +4 more
wiley   +1 more source

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

Advanced Science, EarlyView.
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.
Jie Yang, Pengyi Feng, Fei Han, Weijin Chen, Zhongwei Jin, Jincheng Ni, Yuanjie Yang, Anxue Zhang, Guy A. E. Vandenbosch, Niels Verellen, Ewald Janssens, Jiafu Wang, Benfeng Bai, Cheng‐Wei Qiu, Xuezhi Zheng   +14 more
wiley   +1 more source

High-frequency spin transfer nano-oscillator based on the motion of skyrmions in an annular groove

New Journal of Physics, 2020
Magnetic skyrmion-based spin transfer nano-oscillators (STNOs) have been proposed as microwave signal generators and attracted enormous interest recently. However, the oscillation frequency of skyrmion-based STNOs is about 2 GHz, which is not so high for
Chendong Jin, Yunxu Ma, Chengkun Song, Haiyan Xia, Jianing Wang, Chunlei Zhang, Zhaozhuo Zeng, Jianbo Wang, Qingfang Liu   +8 more
doaj   +1 more source