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相关论文: Skyrmion magnetic structure of an ordered FePt mon…

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We investigate the interplay between the structural reconstruction and the magnetic properties of Fe doublelayers on Ir (111)-substrate using first-principles calculations based on density functional theory and mapping of the total energies…

材料科学 · 物理学 2018-12-19 Melanie Dupé , Stefan Heinze , Jairo Sinova , Bertrand Dupé

We determined the parameters of a classical spin Hamiltonian describing an Fe monolayer on Pd(111) surface with a Pt_{1-x}Ir_{x} alloy overlayer from ab initio calculations. While the ground state of the system is ferromagnetic for x=0.00,…

介观与纳米尺度物理 · 物理学 2016-10-12 Levente Rózsa , András Deák , Eszter Simon , Rocio Yanes , László Udvardi , László Szunyogh , Ulrich Nowak

Ferromagnets crystallizing in structures described by chiral cubic space groups, including compounds with the B20 or $\beta$-Mn structures, are known to host long-period chiral spin textures such as skyrmion lattices. These spin textures…

介观与纳米尺度物理 · 物理学 2020-02-26 Linus Kautzsch , Joshua D. Bocarsly , Claudia Felser , Stephen D. Wilson , Ram Seshadri

Topological spin textures (e.g. skyrmions) can be stabilized by interfacial Dzyaloshinskii-Moriya interaction (DMI) in the magnetic multilayer, which has been intensively studied. Recently, Bloch-type magnetic skyrmions stabilized by…

We investigate the magnetic structures in a bilayer magnetic system with the locally inverted interlayer coupling region using Monte Carlo simulation. Stabilization of multiple magnetic structures including the magnetic skyrmion is possible…

介观与纳米尺度物理 · 物理学 2020-02-26 Chanki Lee , Hee Young Kwon , Nam Jun Kim , Han Gyu Yoon , Chiho Song , Doo Bong Lee , Jun Woo Choi , Young-Woo Son , Changyeon Won

The magnetic properties of (111)-oriented Rh/Co/Pt and Pd/Co/Pt multilayers are investigated by first-principles calculations. We focus on the interlayer exchange coupling, and identify thicknesses and composition where a typical…

材料科学 · 物理学 2018-10-24 Hongying Jia , Bernd Zimmermann , Stefan Blügel

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…

材料科学 · 物理学 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 theoretically study a stabilization mechanism of the skyrmion crystal in centrosymmetric magnets with a bilayer structure. We show that the interplay between a layer-dependent staggered Dzyaloshinskii-Moriya interaction that arises from…

强关联电子 · 物理学 2022-01-10 Satoru Hayami

Skyrmions, spin spirals, and other chiral magnetization structures developing in materials with intrinsic Dzyaloshinsky-Moriya Interaction display unique properties that have been the subject of intense research in thin-film geometries.…

介观与纳米尺度物理 · 物理学 2021-03-11 Swapneel Amit Pathak , Riccardo Hertel

We study theoretically the magnetic properties of the surface monolayers with the antiferromagnetic (AF) and ferromagnetic (FM) exchange interactions where the Dzyaloshinskii-Moriya interaction (DMI) is a result of the mirror symmetry…

强关联电子 · 物理学 2019-11-13 S. V. Maleyev

Skyrmions are emerging topological spin structures that are potentially revolutionary for future data storage and spintronics applications. The existence and stability of skyrmions in magnetic materials is usually associated to the presence…

介观与纳米尺度物理 · 物理学 2018-03-14 R. L. Novak , F. Garcia , E. R. P. Novais , J. P. Sinnecker , A. P. Guimarães

High tunability of two dimensional magnetic materials (by strain, gating, heterostructuring or otherwise) provides unique conditions for studying versatile magnetic properties and controlling emergent magnetic phases. Expanding the scope of…

计算物理 · 物理学 2020-07-07 Raí M. Menezes , Clécio C. de Souza Silva , Milorad V. Milošević

Skyrmions are topologically protected non-collinear magnetic structures. Their stability and dynamics, arising from their topological character, have made them ideal information carriers e.g. in racetrack memories. The success of such a…

Magnetic skyrmions, which are topologically distinct magnetic spin textures, are gaining increased attention for their unique physical properties and potential applications in spintronic devices. Here we present a design strategy for…

The magnetic structure of a Cr monolayer on a W(110) substrate is investigated by means of first-principles calculations based on the noncollinear spin density functional theory (DFT). As magnetic ground state we find a long-period…

材料科学 · 物理学 2016-01-26 Bernd Zimmermann , Marcus Heide , Gustav Bihlmayer , Stefan Blügel

We observe metastable localized spin configurations with topological charges ranging from $Q=-3$ to $Q=2$ in a (Pt$_{0.95}$Ir$_{0.05}$)/Fe bilayer on Pd$(111)$ surface by performing spin dynamics simulations, using a classical Hamiltonian…

Skyrmions having topologically protected field configurations with particle-like properties play an important role in {\bl{various fields of science}}. Our present study focus on the generation of skyrmion from spin spiral in the magnetic…

材料科学 · 物理学 2024-12-23 Banasree Sadhukhan

Magnetic skyrmions present interesting physics due to their topological nature and hold significant promise for future information technologies. A key barrier to realizing skyrmion devices has been stabilizing these spin structures under…

Skyrmions, which are topologically stable magnetic structures, have manifested promising features to be used as an information carrier in new-age, non-volatile data storage devices. In this article, Co/Pt square nano-structure with Co-free…

材料科学 · 物理学 2025-01-23 Tamali Mukherjee , V Satya Narayana Murthy
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