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Related papers: Spatial Antiferromagnetic Spin Texture as a Nano-O…

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Synthetic antiferromagnet (SAF) nanostructures with interfacial Dzyaloshinskii-Moriya interaction can host topologically distinct spin textures such as skyrmions and thus are regarded as promising candidates for both spintronics and…

Mesoscale and Nanoscale Physics · Physics 2022-07-26 Martin Lonsky , Axel Hoffmann

Magnetic skyrmions are topologically protected solitons observed in various classes of real magnets. In two-dimensional systems, where the target space of local magnetization values is the two-sphere $S^2$, skyrmion textures are classified…

Strongly Correlated Electrons · Physics 2025-06-30 Fletcher Williams , David Dahlbom , Hao Zhang , Shruti Agarwal , Kipton Barros , Cristian D. Batista

A non-standing character of directly imaged spin-waves in confined micron-sized ultrathin permalloy (Ni\textsubscript{80}Fe\textsubscript{20}) structures is reported along with evidence of the possibility to alter the observed state by…

Structured light fields, featuring unique topological properties and high tunability, have opened new frontiers in light-matter interactions with magnetic systems. However, the ultrafast and reconfigurable optical encoding of various types…

Optics · Physics 2026-02-02 Zhang Qifan , Yu Wangke , Nie Zhongquan , Shen Yijie , Lin Shirong

Topological spin textures in an itinerant ferromagnet, SrRuO$_3$ is studied combining Hall transport measurements and numerical simulations. We observe characteristic signatures of the Topological Hall Effect associated with skyrmions. A…

Strongly Correlated Electrons · Physics 2020-08-05 P. Zhang , A. Das , E. Barts , M. Azhar , L. Si , K. Held , M. Mostovoy , T. Banerjee

We consider the archetypal frustrated antiferromagnet SrCr$_{9p}$Ga$_{12-9p}$O$_{19}$ in its well-known spin-liquid state, and demonstrate that a Cr$^{3+}$ spin $S=3/2$ ion in direct proximity to a pair of vacancies (in disordered $p<1$…

Strongly Correlated Electrons · Physics 2015-05-19 Arnab Sen , Kedar Damle , Roderich Moessner

Antiferromagnets (AFMs) exhibit intrinsic magnetization when the order parameter spatially varies. This intrinsic spin is present even at equilibrium and can be interpreted as a twisting of the homogeneous AFM into a state with a finite…

Mesoscale and Nanoscale Physics · Physics 2016-03-18 Erlend G. Tveten , Tristan Müller , Jacob Linder , Arne Brataas

Theory of interference-induced quantum corrections to conductivity is developed for two dimensional systems with chiral spin textures including skyrmions. The effect of exchange interaction between electrons and spin textures on weak…

Mesoscale and Nanoscale Physics · Physics 2019-07-24 K. S. Denisov , L. E. Golub

We numerically study the stability and morphology of geometrically confined skyrmions in nanodots using Finsler geometry (FG) modeling technique. The FG model dynamically implements anisotropies in ferromagnetic interaction,…

Strongly Correlated Electrons · Physics 2024-04-24 G. Diguet , B. Ducharne , S. El Hog , F. Kato , H. Koibuchi , T. Uchimoto , H. T. Diep

The spin-orbit torque induced by a topological insulator (TI) is theoretically examined for spin wave generation in a neighboring antiferromagnetic thin film. The investigation is based on the micromagnetic simulation of N\'{e}el vector…

Materials Science · Physics 2020-08-26 Xinyi Xu , Yuriy G. Semenov , Ki Wook Kim

We report that in cylindrical nanorods skyrmion chains, i.e., three-dimensional spin textures, emerge dynamically, as revealed by micromagnetic simulations. The skyrmion-chain state occurs when the diameter of the rod is larger than the…

Mesoscale and Nanoscale Physics · Physics 2017-01-18 Michalis Charilaou , Jörg F. Löffler

A magnetic Skyrmion is a stable two-dimensional nanoparticle describing a localized winding of the magnetization in certain magnetic materials. Skyrmions are the subject of intense experimental and theoretical investigation and have…

Mesoscale and Nanoscale Physics · Physics 2017-08-02 Paul Sutcliffe

The development of spintronic oscillators is driven by their potential applications in radio frequency telecommunication and neuromorphic computing. In this work, we propose a spintronic oscillator based on the chiral coupling in thin…

Mesoscale and Nanoscale Physics · Physics 2021-06-07 Zhiyang Zeng , Zhaochu Luo , Laura J. Heyderman , Joo-Von Kim , Aleš Hrabec

We provide a derivation of a spin Skyrmion number classification for two-dimensional topological superconductors constructed from ferromagnetic and Rashba spin-orbit coupled semiconductor-superconductor heterostructures. We show that in the…

Superconductivity · Physics 2014-04-25 Kristofer Björnson , Annica M. Black-Schaffer

Skyrmions are nanometric spin whirls that can be stabilized in magnets lacking inversion symmetry. The properties of isolated skyrmions embedded in a ferromagnetic background have been intensively studied. We show that single skyrmions and…

Strongly Correlated Electrons · Physics 2017-10-02 Jan Müller , Jayaraman Rajeswari , Ping Huang , Yoshie Murooka , Henrik M. Rønnow , Fabrizio Carbone , Achim Rosch

Superpositions of spin helices can yield topological spin textures, such as two-dimensional vortices and skyrmions, and three-dimensional hedgehogs. Their topological nature and spatial dimensionality depend on the number and relative…

Strongly Correlated Electrons · Physics 2021-02-24 Kotaro Shimizu , Shun Okumura , Yasuyuki Kato , Yukitoshi Motome

Magnetic skyrmions, topological spin textures observed in chiral magnets, have attracted huge interest due to their applications in the field of spintronics. In this work we study the stability of circular isolated skyrmions in…

Strongly Correlated Electrons · Physics 2019-03-06 S. A. Osorio , M. B. Sturla , H. D. Rosales , D. C. Cabra

We study the geometrical conditions for stabilizing magnetic skyrmions in cylindrical nanostrips and nanotubes of ferromagnetic materials with chiral interactions. We obtain the low-temperature equilibrium state of the system implementing a…

Mesoscale and Nanoscale Physics · Physics 2020-08-28 Dimitris Kechrakos , Lida Tzannetou , Aristotelis Patsopoulos

A superposition of spin helices can yield topological spin textures, such as skyrmion and hedgehog lattices. Based on the analogy with the moir\'e in optics, we study the magnetic and topological properties of such superpositions in a…

Strongly Correlated Electrons · Physics 2021-05-26 Kotaro Shimizu , Shun Okumura , Yasuyuki Kato , Yukitoshi Motome

Spin torque nano-oscillator has been extensively studied both theoretically and experimentally in recent decades due to its potential applications in future microwave communication technology and neuromorphic computing. In this work, we…

Mesoscale and Nanoscale Physics · Physics 2023-01-12 Xue Liang , Laichuan Shen , Xiangjun Xing , Yan Zhou