Results 1 to 10 of about 1,542,467 (228)

Magnetic Direct-Write Skyrmion Nanolithography [PDF]

ACS Nano, 2020
Magnetic skyrmions are stable spin textures with quasi-particle behavior and attract significant interest in fundamental and applied physics. The metastability of magnetic skyrmions at zero magnetic field is particularly important to enable, for instance, a skyrmion racetrack memory. Here, the results of the nucleation of stable skyrmions and formation
Alexander Samardak, Alexander Kolesnikov, Jyoti Ranjan Mohanty   +2 more
exaly   +9 more sources

Dynamics of Elliptical Magnetic Skyrmion in Defective Racetrack. [PDF]

Nanomaterials (Basel)
Recently, it has been reported that the skyrmion Hall effect can be suppressed in an elliptical skyrmion-based device. Given that defects are unavoidable in materials, it is necessary and important to investigate the dynamics of an elliptical skyrmion in
Zhu H, Xiang G, Feng Y, Zhang X.
europepmc   +3 more sources

Magnetic skyrmion braids. [PDF]

Nat Commun, 2021
AbstractSkyrmions are vortex-like spin textures that form strings in magnetic crystals. Due to the analogy to elastic strings, skyrmion strings are naturally expected to braid and form complex three-dimensional patterns, but this phenomenon has not been explored yet.
Zheng F, Rybakov FN, Kiselev NS, Song D, Kovács A, Du H, Blügel S, Dunin-Borkowski RE.   +7 more
europepmc   +7 more sources

Magnetostatics of magnetic skyrmion crystals

New Journal of Physics, 2018
Magnetic skyrmion crystals are topological magnetic textures arising in the chiral ferromagnetic materials with Dzyaloshinskii–Moriya interaction.
Ren Qin, Yong Wang
doaj   +3 more sources

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

Blowing magnetic skyrmion bubbles [PDF]

Science, 2015
Skyrmions emerge in trilayers Skyrmions are tiny whirlpools of magnetic spin with potential to act as carriers of information in future devices. Skyrmions have been observed in multiple materials but usually at impractically low temperatures. Jiang et al.
John Pearson, M Benjamin Jungfleisch, Pramey Upadhyaya   +2 more
exaly   +3 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

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

Current-induced creation and dynamics of embedded magnetic skyrmion bags. [PDF]

Nat Commun
Magnetic skyrmion bags—vortex-like structures hosting multiple skyrmions with tunable topological charge (Q)—hold significant promise for next-generation spintronic computing.
Wu Y, Jiang J, Kong L, Shi M, Wang S, Tian M, Du H, Tang J.   +7 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