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Related papers: Current-driven skyrmion motion along disordered ma…

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Magnetic textures can be manipulated by electric currents via the mechanisms of spin-transfer and spin-orbit-torques. We review how these torques can be exploited to create chiral magnetic textures in magnets with broken inversion…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Jan Masell , Karin Everschor-Sitte

Domain-wall skyrmions are magnetic solitons embedded in a domain wall that are topologically equivalent to skyrmions. Here, we theoretically study antiferromagnetic domain-wall skyrmions and their current-driven motion within the…

Mesoscale and Nanoscale Physics · Physics 2025-08-14 Wooyon Kim , Jun Seok Seo , Se Kwon Kim

We investigate persistent charge and spin currents in a ferromagnetic Hatano-Nelson ring with anti-Hermitian intradimer hopping, where non-reciprocal hopping generates a synthetic magnetic flux and drives a non-Hermitian Aharonov-Bohm…

Mesoscale and Nanoscale Physics · Physics 2026-02-06 Sourav Karmakar , Sudin Ganguly , Santanu K. Maiti

Spintronic devices, whose operation is based on the motion of a magnetic domain wall (DW), have been proposed recently. If a DW could be driven directly by flowing an electric current instead of a magnetic field, the performance and…

Materials Science · Physics 2009-11-10 Akinobu Yamaguchi , Teruo Ono , Saburo Nasu , Kousaku Miyake , Ko Mibu , Teruya Shinjo

Magnetic skyrmions are vortex-like, swirls of magnetisation whose topological protection and particle-like nature have suggested them to be suitable for a number of novel spintronic devices. One such application is skyrmionic computing,…

We study the stabilization and electrical manipulation of skyrmions in magnetic ultrathin films in the absence of an applied magnetic field. We show that this requires an increased magnetic anisotropy, controlled by the sample thickness, as…

Materials Science · Physics 2023-01-06 Sougata Mallick , Sujit Panigrahy , Gajanan Pradhan , Stanislas Rohart

Dynamics of magnetic skyrmions in hybrid ferromagnetic films harbors novel physical phenomena and holds promise for technological applications. In this work, we discuss the behavior of magnetic skyrmions when coupled to superconducting…

A scanning tunneling microscope can probe the inelastic spin excitations of a single magnetic atom in a surface via spin-flip assisted tunneling in which transport electrons exchange spin and energy with the atomic spin. If the inelastic…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 F. Delgado , J. Fernández-Rossier

Spin-dynamics techniques can now be used to study the deterministic time-dependent behavior of magnetic systems containing over 10^5 spins with quite good accuracy. This approach will be introduced, including the theoretical foundations of…

Statistical Mechanics · Physics 2009-10-31 D. P. Landau , Alex Bunker , Hans Gerd Evertz , M. Krech , Shan-Ho Tsai

With the recent proposition of skyrmion utilization in racetrack memories at room temperature, skyrmionics has become a very attractive field. However, for the stability of skyrmions, it is essential to incorporate the Dzyaloshinskii-Moriya…

Mesoscale and Nanoscale Physics · Physics 2018-03-09 R. P. Loreto , W. A. Moura-Melo , A. R. Pereira , X. Zhang , Y. Zhou , M. Ezawa , C. I. L. Araujo

Magnetic skyrmions are topologically protected nanoscale objects, which are promising building blocks for novel magnetic and spintronic devices. Here, we investigate the dynamics of a skyrmion driven by a spin wave in a magnetic nanowire.…

Mesoscale and Nanoscale Physics · Physics 2015-08-28 Xichao Zhang , Motohiko Ezawa , Dun Xiao , G. P. Zhao , Yaowen Liu , Yan Zhou

The magnetic skyrmion is a nanoscale topological object characterized by the winding of the magnetic moments, appearing in magnetic materials with broken inversion symmetry. Because of its low current threshold for driving, the skyrmions…

Mesoscale and Nanoscale Physics · Physics 2019-10-30 Ryo Iguchi , Shinya Kasai , Kazushige Koshikawa , Norimichi Chinone , Shinsuke Suzuki , Ken-ichi Uchida

Current-driven dynamics of spin textures plays a pivotal role in potential applications for electronic devices. While two-dimensional magnetic skyrmions with topologically nontrivial spin textures have garnered significant interest, their…

Strongly Correlated Electrons · Physics 2025-04-25 Kotaro Shimizu , Shun Okumura , Yasuyuki Kato , Yukitoshi Motome

Many active particles, both of biological and synthetic origin, can have a light controllable propulsion speed, a property that in biology is commonly referred to as photokinesis. Here we investigate directed transport of photokinetic…

Soft Condensed Matter · Physics 2018-07-05 Claudio Maggi , Luca Angelani , Giacomo Frangipane , Roberto Di Leonardo

The aim of this paper is to evaluate the train/track induced loads on the substructure by modelling the wheel, at each instant, as a moving sinusoidal pulse applied in a very short period of time. This assumption has the advantage of being…

Numerical Analysis · Mathematics 2023-06-22 Mohammed Touati , Nouzha Lamdouar , Chakir Tajani

The texture in antiferromagnets hosting a topologically protected skyrmion can be viewed as two effectively coupled ferromagnetic skyrmions. Assuming rigid magnetic configurations, we show that this coupling results in an effective mass of…

Mesoscale and Nanoscale Physics · Physics 2025-05-12 Michael Lau , Wolfgang Häusler , Michael Thorwart

A theoretical study on the interplay of frustrated skyrmion and magnons is useful for revealing new physics and future experiments design. In this work, we investigated the magnon-driven dynamics of frustrated skyrmion in synthetic…

Applied Physics · Physics 2022-08-24 Z. Jin , Y. F. Hu , T. T. Liu , Y. Liu , Z. P. Hou , D. Y. Chen , Z. Fan , M. Zeng , X. B. Lu , X. S. Gao , M. H. Qin , J. M. Liu

Plasma flow and acceleration in a magnetic mirror configuration are studied using a drift-kinetic particles-in-cell model in the paraxial approximation, with an emphasis on finite temperature effects and energy transport. Energy conversion…

Plasma Physics · Physics 2025-01-28 M. Tyushev , A. Smolyakov , A. Sabo , R. Groenewald , A. Necas , P. Yushmanov

Chiral magnets can host topological particles known as skyrmions, which carry an exactly quantised topological charge $Q=-1$. In the presence of an oscillating magnetic field ${\bf B}_1(t)$, a single skyrmion embedded in a ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2023-08-16 Nina del Ser , Vivek Lohani

We have investigated an analytic formula of the 1-dimensional magnetic skyrmion dynamics under external magnetic field gradient. We find excellent agreement between the analytical model and micromagnetic simulation results for various…

Mesoscale and Nanoscale Physics · Physics 2020-12-02 Jaehun Cho , Eiiti Tamura , Chaozhe Liu , Soma Miki , Chun-Yeol You , June-Seo Kim , Hikaru Nomura , Minori Goto , Ryoichi Nakatani , Yoshishige Suzuki