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We formulate and study the general boundary conditions dictating the magnetization profile in the vicinity of an interface between magnets with dissimilar properties. Boundary twists in the vicinity of an edge due to Dzyaloshinskii-Moriya…

介观与纳米尺度物理 · 物理学 2018-12-21 Aldo Raeliarijaona , Rabindra Nepal , Alexey A. Kovalev

Topological defects in magnetism have attracted great attention due to fundamental research interests and potential novel spintronics applications. Rich examples of topological defects can be found in nanoscale non-uniform spin textures,…

材料科学 · 物理学 2017-10-11 Siying Huang , Chao Zhou , Gong Chen , Hongyi Shen , Andreas K. Schmid , Kai Liu , Yizheng Wu

We study both analytically and numerically the edge of two-dimensional ferromagnets with Dzyaloshinskii-Moriya (DM) interactions, considering both chiral magnets and magnets with interface-induced DM interactions. We show that in the…

强关联电子 · 物理学 2017-02-14 Jan Müller , Achim Rosch , Markus Garst

Magnetic skyrmions are textures behaving as quasiparticles which are topologically different from other states. Their discovery in systems with broken inversion symmetry sparked the search for materials containing such magnetic phase at…

When two magnetic skyrmions - whirl-like, topologically protected quasiparticles - form a bound pair, a biskyrmion state with a topological charge of $N_\mathrm{Sk}=\pm 2$ is constituted. Recently, especially the case of two partially…

强关联电子 · 物理学 2019-07-03 Börge Göbel , Jürgen Henk , Ingrid Mertig

It is shown here that a Kagom\'e magnet, with Heisenberg and Dzyaloshinskii-Moriya interactions causes non trivial topological and chiral magnetic properties. Chirality---that is, left or right handedness---is a very important concept in a…

强关联电子 · 物理学 2019-10-18 Manuel Pereiro , Dmitry Yudin , Jonathan Chico , Corina Etz , Olle Eriksson , Anders Bergman

The magnetic skyrmion structure can be formed in the chiral magnets (CMs) with strong Dzyaloshinskii-Moriya interactions. In this work, we propose a way of artificially tailoring the topological details of the skyrmion such as its radial…

介观与纳米尺度物理 · 物理学 2016-10-06 Yin-Yan Zhang , Rui Zhu

The topological Hall effect is a hallmark of topologically non-trivial magnetic textures such as magnetic skyrmions. It quantifies the transverse electric current that is generated once an electric field is applied and occurs as a…

介观与纳米尺度物理 · 物理学 2025-01-14 Börge Göbel , Lennart Schimpf , Ingrid Mertig

A stable skyrmion, representing the smallest realizable magnetic texture, could be an ideal element for ultra-dense magnetic memories. Here, we review recent progress in the field of skyrmionics, which is concerned with studies of tiny…

介观与纳米尺度物理 · 物理学 2018-10-01 Alexey A. Kovalev , Shane Sandhoefner

Magnetic skyrmions can be considered as topologically protected localized vortex-like spin textures. Due to their stability, their small size, and the possibility to move them by low electric currents they are promising candidates for…

介观与纳米尺度物理 · 物理学 2017-07-05 Martin Stier , Wolfgang Häusler , Thore Posske , Gregor Gurski , Michael Thorwart

We theoretically investigate field-induced switching of magnetic topology in a nanodisk-shaped sample of noncentrosymmetric dipolar magnet in which the Dzyaloshinskii-Moriya interaction that stabilizes an antiskyrmion with $N_{\rm sk}$=+1…

介观与纳米尺度物理 · 物理学 2025-09-15 Tatsuki Muto , Masahito Mochizuki

We examine the current-induced dynamics of a skyrmion that is subject to both structural and bulk inversion asymmetry. There arises a hybrid type of Dzyaloshinskii-Moriya interaction (DMI) which is in the form of a mixture of interfacial…

介观与纳米尺度物理 · 物理学 2018-07-04 Kyoung-Whan Kim , Kyoung-Woong Moon , Nico Kerber , Jonas Nothhelfer , Karin Everschor-Sitte

Skyrmions, topologically stable magnetic solitons characterized by whirling magnetization in nanoscale magnetic elements, show promise information carriers in spintronics and spin-based quantum computing due to their unique properties:…

介观与纳米尺度物理 · 物理学 2024-11-08 Suyeong Jeong , Dae-Han Jung , Hee-Sung Han , Ganghwi Kim , Myeonghwan Kang , Mi-Young Im , Younggun Park , Ki-Suk Lee

Magnetic skyrmions are nanoscale spin whirlpools that promise breakthroughs in future spintronic applications. Controlled generation of magnetic skyrmions by electric current is crucial for this purpose. While previous studies have…

材料科学 · 物理学 2022-11-29 Xuebing Zhao , Jin Tang , Ke Pei , Weiwei Wang , Shi-Zeng Lin , Haifeng Du , Mingliang Tian , Renchao Che

We consider a twisted magnetic bilayer subject to the perpendicular electric field. The interplay of induced Dzyaloshinskii - Moriya interaction and spatially varying moir\'e exchange potential results in complex non-collinear magnetic…

介观与纳米尺度物理 · 物理学 2023-08-11 Polina Shaban , Igor Lobanov , Valerii Uzdin , Ivan Iorsh

We present a comprehensive study of current-driven dynamics, transformations, and instabilities of skyrmioniums in chiral magnetic films, considering both isolated objects and collective states forming skyrmionium-based meta-matter. Using…

介观与纳米尺度物理 · 物理学 2026-04-20 Kaito Nakamura , Yuka Kotorii , Andrey O. Leonov

From a theoretical perspective, we demonstrate that nanometric magnetic skyrmions are created by application of a circularly polarized microwave magnetic field to a thin-plate Dzyaloshinskii-Moriya ferromagnet with fabricated rectangular…

介观与纳米尺度物理 · 物理学 2021-08-31 Masayuki Miyake , Masahito Mochizuki

Magnetic solitons have recently attracted significant attention due to their intricate physical properties and potential applications in information processing. The majority of the studies in this field, however, are focused on a particular…

To enable functional skyrmion based spintronic devices, the controllable generation and manipulation of skyrmions is essential. While the generation of skyrmions by using a magnetic geometrical constriction has already been demonstrated,…

In this work, we study topological properties of magnons via creating spin excitations in both ferromagnets and antiferromagnets in presence of an external magnetic field on a two-dimensional square lattice. It is known that…

介观与纳米尺度物理 · 物理学 2024-07-23 Shreya Debnath , Saurabh Basu
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