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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

Using first-principle calculations, we demonstrate several approaches to manipulate Dzyaloshinskii-Moriya Interaction (DMI) in ultrathin magnetic films. First, we find that DMI is significantly enhanced when the ferromagnetic (FM) layer is…

Materials Science · Physics 2018-08-20 Hongxin Yang , Olivier Boulle , Vincent Cros , Albert Fert , Mairbek Chshiev

The current driven motion of skyrmions in MnSi and FeGe thinned single crystals could be initiated at current densities of the order of $10^6$ A/m, five orders of magnitude smaller than for magnetic domain walls. The technologically crucial…

Materials Science · Physics 2016-09-07 Mirko Baćani , Miguel A. Marioni , Johannes Schwenk , Hans J. Hug

Magnetic multilayers of (Ir/Co/Pt)$_6$ with interfacial Dzyaloshinskii-Moriya interaction (IDMI) were deposited by magnetron sputtering with Co thickness $d=1.8$ nm. Exploiting magneto-optical Kerr effect in longitudinal mode microscopy,…

Mesoscale and Nanoscale Physics · Physics 2022-04-13 A. K. Dhiman , R. Gieniusz , P. Gruszecki , J. Kisielewski , M. Matczak , Z. Kurant , I. Sveklo , U. Guzowska , M. Tekielak , F. Stobiecki , A. Maziewski

The use of moir\'e patterns to manipulate two-dimensional materials has facilitated new possibilities for controlling material properties. The moir\'e patterns in the two-dimensional magnets can cause peculiar spin texture, as shown by…

Mesoscale and Nanoscale Physics · Physics 2023-12-29 Kyoung-Min Kim , Moon Jip Park

Dzyaloshinskii-Moriya interaction, DMI in short, represents an antisymmetric type of magnetic interactions that favour orthogonal orientation of spins and competes with Heisenberg exchange. Being introduced to explain weak ferromagnetism in…

Strongly Correlated Electrons · Physics 2021-06-02 V. V. Mazurenko , Y. O. Kvashnin , A. I. Lichtenstein , M. I. Katsnelson

Magnetic domain-walls (DWs) with a preferred chirality exhibit very efficient current-driven motion. Since structural inversion asymmetry (SIA) is required for their stability, the observation of chiral domain walls in highly symmetric…

Mesoscale and Nanoscale Physics · Physics 2014-04-14 Jeroen H. Franken , Mark Herps , Henk J. M. Swagten , Bert Koopmans

The Dzyaloshinskii-Moriya interaction (DMI), which only exists in noncentrosymmetric systems, is responsible for the formation of exotic chiral magnetic states. The absence of DMI in most two-dimensional (2D) magnetic materials is due to…

Materials Science · Physics 2020-05-06 Jinghua Liang , Weiwei Wang , Haifeng Du , Ali Hallal , Karin Garcia , Mairbek Chshiev , Albert Fert , Hongxin Yang

We report simulation results of skyrmions on fluctuating 2D lattices, where the vertices ${\bf r}_i (\in {\bf R}^3)$ are treated as a dynamical variable and, hence, there is no crystalline structure. On the fluctuating surfaces, an external…

Strongly Correlated Electrons · Physics 2019-10-07 Sahbi EL Hog , Fumitake Kato , Hiroshi Koibuchi , Hung T. Diep

Domain walls are the transition regions between two magnetic domains. These objects have been very relevant during the last decade, not only due to their intrinsic interest in the development of novel spintronics devices but also because of…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Oscar Alejos , Víctor Raposo , Eduardo Martínez

We present a phenomenological theory of altermagnets, that captures their unique magnetization dynamics and allows modelling magnetic textures in this new magnetic phase. Focusing on the prototypical d-wave altermagnets, e.g. RuO$_2$, we…

Mesoscale and Nanoscale Physics · Physics 2024-07-30 O. Gomonay , V. P. Kravchuk , R. Jaeschke-Ubiergo , K. V. Yershov , T. Jungwirth , L. Šmejkal , J. van den Brink , J. Sinova

Two-dimensional magnetic insulators can be promising hosts for topological magnons. In this study, we show that ABC-stacked honeycomb lattice multilayers with alternating Dzyaloshinskii-Moriya interaction (DMI) reveal a rich topological…

Mesoscale and Nanoscale Physics · Physics 2021-08-19 Stephen Hofer , Trinanjan Datta , Sumanta Tewari , Dipanjan Mazumdar

The interfacial Dzyaloshinskii-Moriya interaction (DMI) can be exploited in magnetic thin films to realize lateral chirally coupled systems, providing a way to couple different sections of a magnetic racetrack and realize interconnected…

Mesoscale and Nanoscale Physics · Physics 2024-10-10 Guillaume Beaulieu , Zhaochu Luo , Víctor Raposo , Laura J. Heyderman , Pietro Gambardella , Eduardo Martínez , Aleš Hrabec

We develop a theory of a dynamical Dzyaloshinskii-Moriya interaction (dDMI) in centrosymmetric crystals by generally considering the vibration of both cations and anions. It gives rise to an antisymmetric spin-lattice coupling, inducing…

Mesoscale and Nanoscale Physics · Physics 2025-12-25 Bowen Ma , Z. D. Wang

We demonstrate deterministic control of dipole-field-stabilized skyrmions by means of spin-orbit torques arising from heavy transition-metal seed layers. Experiments are performed on amorphous Fe/Gd multilayers that are patterned into wires…

Materials Science · Physics 2018-10-17 Sergio A. Montoya , Robert Tolley , Ian Gilbert , Soong-Geun Je , Mi-Young Im , Eric E. Fullerton

We have carried out measurements of domain wall dynamics in a Pt/Co/GdOx(t) wedge sample with perpendicular magnetic anisotropy. When driven by an easy-axis field Hz in the presence of an in-plane field Hx, the domain wall expansion along x…

Materials Science · Physics 2015-10-29 M. Vanatka , J. -C. Rojas-Sanchez , J. Vogel , M. Bonfim , A. Thiaville , S. Pizzini

Motivated by the recent experiment demonstration of stacking dependent interlayer magnetic interaction [T. Song et al., Nat. Mater. 18, 1298 (2019); T. Li et al., Nat. Mater. 18, 1303 (2019); W. Chen et al., Science 366, 983 (2019)], we…

Mesoscale and Nanoscale Physics · Physics 2021-03-22 Feiping Xiao , Keqiu Chen , Qingjun Tong

Spin waves in perpendicularly-magnetized Pt/Co/AlO$_x$/Pt ultrathin films with varying Co thicknesses (0.6-1.2 nm) have been studied with Brillouin light spectroscopy in the Damon-Eshbach geometry. The measurements reveal a pronounced…

The Dzyaloshinskii-Moriya interaction (DMI) in asymmetric multilayers is crucial for spintronics. However, it is also significant even in symmetric ones, and unveiling its atomic-level origin remains an issue. We use electron microscopy to…

We consider multiskyrmion configurations in 2D ferromagnets with Dzyaloshinskii-Moriya (DM) interaction and the magnetic field, using the stereographic projection method. In the absence of DM interaction, $D$, and the field, $B$, the…

Strongly Correlated Electrons · Physics 2019-02-20 V. E. Timofeev , A. O. Sorokin , D. N. Aristov
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