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Related papers: Interlayer Dzyaloshinskii-Moriya interactions

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Recently, great effort has been devoted to the search for two-dimensional (2D) ferromagnetic materials with inherent strong Dzyaloshinskii--Moriya interaction (DMI). Here, through a first-principles approach, we systematically investigate…

Materials Science · Physics 2022-09-14 Zhong Shen , Changsheng Song , Yufei Xue , Zebin Wu , Jiqing Wang , Zhicheng Zhong

The magnetic exchange interaction is the one of the key factors governing the basic characteristics of magnetic systems. Unlike the symmetric nature of the Heisenberg exchange interaction, the interfacial Dzyaloshinskii-Moriya interaction…

We study skyrmions in magnetic thin films with structural inversion asymmetry perpendicular to the film plane. We determine the magnetization texture of a single skyrmion and its dependence on the strength of the Dzyaloshinskii-Moriya…

Mesoscale and Nanoscale Physics · Physics 2014-03-05 M. E. Knoester , Jairo Sinova , R. A. Duine

Chiral magnetic textures in ultrathin perpendicularly magnetised multilayer film stacks with an interfacial Dzyaloshinskii-Moriya interaction have been the focus of much research recently. The chirality associated with the broken inversion…

Materials Science · Physics 2020-01-01 K. Fallon , S. McVitie , W. Legrand , F. Ajejas , D. Maccariello , S. Collin , V. Cros , N. Reyren

We demonstrate numerically on large spin lattices that one can write skyrmions in a thin magnetic film with a magnetic dipole of a few tens of nanometer in size. Nucleation of non-chiral skyrmions as well as chiral skyrmions formed by the…

Mesoscale and Nanoscale Physics · Physics 2018-10-17 Dmitry A. Garanin , Daniel Capic , Senfu Zhang , Xixiang Zhang , Eugene M. Chudnovsky

Recent theoretical and experimental studies of the interlayer Dzyaloshinskii-Moriya interaction (DMI) has sparked great interest in its implementation into practical magnetic random-access memory (MRAM) devices, due to its capability to…

Applied Physics · Physics 2023-12-27 Yu-Hao Huang , Jui-Hsu Han , Wei-Bang Liao , Chen-Yu Hu , Yan-Ting Liu , Chi-Feng Pai

We analyze the nature of the modulated magnetic states in a micromagnetic model for the monoaxial chiral magnet MnNb$_3$S$_6$ for which the Dzyaloshinskii-Moriya interaction and the dipolar interaction compete evenly. We show that the…

Strongly Correlated Electrons · Physics 2023-04-28 S. A. Osorio , V. Laliena , J. Campo , S. Bustingorry

Pyrochlore oxides show several fascinating phenomena, such as the formation of heavy fermions and the thermal Hall effect. Although a key to understanding some phenomena may be the Dzyaloshinsky-Moriya (DM) interaction, its microscopic…

Strongly Correlated Electrons · Physics 2016-10-26 Naoya Arakawa

We raise the possibility that the chiral degeneracy of the magnons in ultrathin films can be lifted due to the presence of Dzyaloshinskii-Moriya interactions. By using simple symmetry arguments, we discuss under which conditions such a…

Materials Science · Physics 2015-05-13 L. Udvardi , L. Szunyogh

Using first-principles calculations, we study the magnetic properties of a Co monolayer on a Pt(111) surface with a capping monolayer of selected $5d$ elements (Re, Os, Ir, Pt and Au). First we determine the tensorial exchange interactions…

Materials Science · Physics 2018-04-18 E. Simon , L. Rózsa , K. Palotás , L. Szunyogh

Chiral magnets are an emerging class of topological matter harbouring localized and topologically protected vortex-like magnetic textures called skyrmions, which are currently under intense scrutiny as a new entity for information storage…

We find closed-form solution of the Euler equation for a chiral magnet in terms of a skyrmion or a meron depending on the relative strengths of magnetic anisotropy and magnetic field. We show that the relevant length scales for these…

Mesoscale and Nanoscale Physics · Physics 2019-11-27 Sandip Bera , Sudhansu S. Mandal

Dzyaloshinskii-Moriya interaction (DMI) is the key ingredient of chiral spintronic phenomena and the emerging technologies based on such phenomena. A nonzero DMI usually occurs at magnetic interfaces or within non-centrosymmetric single…

Materials Science · Physics 2022-07-06 Lijun Zhu , David Lujan , Xiaoqin Li

We studied the spin torque efficiency and the Dzyaloshinskii-Moriya interaction (DMI) of heterostructures that contain interface(s) of Ir and Co. The current-induced shifts of the anomalous Hall loops were used to determine the spin torque…

Mesoscale and Nanoscale Physics · Physics 2019-10-08 Yuto Ishikuro , Masashi Kawaguchi , Naoaki Kato , Yong-Chang Lau , Masamitsu Hayashi

The chiral spin textures of a two-dimensional (2D) triangular system, where both antiferromagnetic (AF) Heisenberg exchange and chiral Dzyaloshinsky-Moriya interactions co-exist, are investigated numerically with an optimized quantum Monte…

Materials Science · Physics 2020-08-26 Zhaosen Liu , Manuel dos Santos Dias , Samir Lounis

The Dzyaloshinskii-Moriya interaction (DMI) has an impact on excited spin waves in the chiral magnet Cu$_2$OSeO$_3$ by means of introducing asymmetry on their dispersion relations. The confined eigenmodes of a chiral magnet are hence no…

The profile and energy of chiral skyrmions, found in magnetic materials with the Dzyaloshinskii-Moriya interaction, can be approximated by formulae obtained through asymptotic analysis in the limits of small and large skyrmion radius. Using…

Mesoscale and Nanoscale Physics · Physics 2023-02-22 Stavros Komineas , Christof Melcher , Stephanos Venakides

An enhancement of the spin-orbit effects arising on an interface between a ferromagnet (FM) and a heavy metal (HM) is possible through the strong breaking of the structural inversion symmetry in the layered films. Here we show that the…

Electrical switching of magnetization is central to spintronics. Despite the enormous efforts on the spin torques and the Dzyaloshinskii-Moriya interaction (DMI) effects, some fundamental physics for electrical switching of magnetization is…

Materials Science · Physics 2024-03-26 Qianbiao Liu , Long Liu , Guozhong Xing , Lijun Zhu

Interfacial Dzyaloshinkii-Moriya interaction (DMI) is a key ingredient in the stabilization of chiral magnetic states in thin films. Its sign and strength often determine crucial properties of magnetic objects, like their topology or how…