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Magnetic bimeron composed of two merons is a topological counterpart of magnetic skyrmion in in-plane magnets, which can be used as the nonvolatile information carrier in spintronic devices. Here we analytically and numerically study the…

介观与纳米尺度物理 · 物理学 2020-09-25 Laichuan Shen , Xiaoguang Li , Jing Xia , Lei Qiu , Xichao Zhang , Oleg A. Tretiakov , Motohiko Ezawa , Yan Zhou

Magnetic bimerons are topologically nontrivial spin textures in in-plane easy-axis magnets, which can be used as particle-like information carriers. Here, we report a theoretical study on the nonreciprocal dynamics of asymmetrical…

A mgnetic bimeron is an in-plane topological counterpart of a magnetic skyrmion. Despite the topological equivalence, their statics and dynamics could be distinct, making them attractive from the perspectives of both physics and spintronic…

介观与纳米尺度物理 · 物理学 2020-11-16 X. Li , L. Shen , Y. Bai , J. Wang , X. Zhang , J. Xia , M. Ezawa , O. A. Tretiakov , X. Xu , M. Mruczkiewicz , M. Krawczyk , Y. Xu , R. F. L. Richard , R. W. Chantrell , Y. Zhou

We study current-driven skyrmion motion in uniaxial thin film antiferromagnets in the presence of the Dzyaloshinskii-Moriya interactions and in an external magnetic field. We phenomenologically include relaxation and current-induced torques…

介观与纳米尺度物理 · 物理学 2017-04-05 Hristo Velkov , Olena Gomonay , Maarten Beens , Georg Schwiete , Arne Brataas , Jairo Sinova , Rembert A. Duine

Domain-wall bimerons are composite topological structures formed by embedding bimerons within domain walls in ferromagnets with in-plane anisotropy. These hybrid textures have recently attracted significant attention due to their promise…

介观与纳米尺度物理 · 物理学 2025-05-05 Jiwen Chen , Laichuan Shen , Yan Zhou , Oleg A. Tretiakov , Xiaoguang Li

The nontrivial topological spin textures, such as magnetic skyrmions, are of great interest due to their potential use as information carriers in spintronic memory and logic. Here, we theoretically predict an asymmetric antibimeron (AAB) --…

介观与纳米尺度物理 · 物理学 2024-10-15 Pavel A. Vorobyev , Daichi Kurebayashi , Oleg A. Tretiakov

Magnetic skyrmions are topological spin textures that appear in magnets with broken spatial inversion symmetry via competition between the (anti)ferromagnetic exchange interactions and the Dzyaloshinskii-Moriya interactions in a magnetic…

介观与纳米尺度物理 · 物理学 2025-02-14 Yuto Ohki , Masahito Mochizuki

We show a topological spin texture called "bimeronium" in magnets with in-plane magnetization. It is a topological counterpart of skyrmionium in perpendicularly magnetized magnets and can be seen as a combination of two bimerons with…

介观与纳米尺度物理 · 物理学 2021-02-04 Xichao Zhang , Jing Xia , Motohiko Ezawa , Oleg A. Tretiakov , Hung T. Diep , Guoping Zhao , Xiaoxi Liu , Yan Zhou

Magnetic bimeron is a topological counterpart of skyrmions in in-plane magnets, which can be used as a spintronic information carrier. We report the static properties of bimerons with different topological structures in a frustrated…

介观与纳米尺度物理 · 物理学 2020-04-29 Xichao Zhang , Jing Xia , Laichuan Shen , Motohiko Ezawa , Oleg A. Tretiakov , Guoping Zhao , Xiaoxi Liu , Yan Zhou

The ever-growing demand for device miniaturization and energy efficiency in data storage and computing technology has prompted a shift towards antiferromagnetic (AFM) topological spin textures as information carriers, owing to their…

Magnetic bimerons are potential information carriers in spintronic devices. Bimerons, topologically equivalent to skyrmions, manifest in chiral magnetic systems with in-plane magnetization due to anisotropies or external magnetic fields.…

Magnetic skyrmions, vortex-like swirling spin structures with quantized topological number, observed in chiral magnets, are appealing for potential applications in spintronics because it is possible to control their motion with ultralow…

介观与纳米尺度物理 · 物理学 2013-10-08 Junichi Iwasaki , Masahito Mochizuki , Naoto Nagaosa

Topologically protected magnetic textures, such as skyrmions, half-skyrmions (merons) and their antiparticles, constitute tiny whirls in the magnetic order. They are promising candidates for information carriers in next-generation memory…

We study a bilayer structure consisting of an antiferromagnetic insulator and a normal metal. An electron current is driven in the normal metal with direction parallel to the interface between the materials. Due to interfacial exchange…

介观与纳米尺度物理 · 物理学 2022-06-01 Eirik Erlandsen , Asle Sudbø

Skyrmions are topologically protected entities in magnetic materials which have the potential to be used in spintronics for information storage and processing. However, Skyrmions in ferromagnets have some intrinsic difficulties which must…

介观与纳米尺度物理 · 物理学 2016-04-11 Joseph Barker , Oleg A. Tretiakov

In the quest for post-CMOS technologies, ferromagnetic skyrmions and their anti-particles have shown great promise as topologically protected solitonic information carriers in memory-in-logic or neuromorphic devices. However, the presence…

A theoretical study on the dynamics of an antiferromagnetic (AFM) skyrmion is indispensable for revealing the underlying physics and understanding the numerical and experimental observations. In this work, we present a reliable theoretical…

材料科学 · 物理学 2020-08-14 Z. Jin , T. T. Liu , W. H. Li , X. M. Zhang , Z. P. Hou , D. Y. Chen , Z. Fan , M. Zeng , X. B. Lu , X. S. Gao , M. H. Qin , J. M. Liu

We study the influence of an electric current on a continuous non-collinear antiferromagnetic texture. Despite the lack of a net magnetic moment we find that the exchange interaction between conduction electrons and local magnetization…

介观与纳米尺度物理 · 物理学 2009-12-24 A. C. Swaving , R. A. Duine

Spin currents can be generated through various mechanisms, including the piezospintronic effect, which arises when strain or lattice distortions induce a change in the dipolar spin moment, causing a pure spin current without necessarily…

介观与纳米尺度物理 · 物理学 2026-03-24 Martin Latorre , Gaspar De la Barrera , Roberto E. Troncoso , Alvaro S. Nunez

Magnetic skyrmions are topological spin textures promising for future high-density and nonvolatile memory. It is crucial to understand the current-driven skyrmion dynamics in the presence of deformation, of which an analytical model,…

介观与纳米尺度物理 · 物理学 2022-01-13 Zehan Chen , Xichao Zhang , Yan Zhou , Qiming Shao
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