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Related papers: Unidirectional magnetic coupling

200 papers

We theoretically show that moderate interaction between electrons confined to move in a plane and localized magnetic moments leads to formation of a noncoplanar magnetic state. The state is similar to the skyrmion crystal recently observed…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 D. Solenov , D. Mozyrsky , I. Martin

We use spin-torque resonance to probe simultaneously and separately the dynamics of a magnetic domain wall and of magnetic domains in a nanostripe magnetic tunnel junction. Thanks to the large associated resistance variations we are able to…

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…

We demonstrate that low-lying triplon excitations in a bilayer Heisenberg antiferromagnet provide a promising avenue to realize magnetic analogs of twisted superfluid and supersolid phases that were recently reported for two-component…

Strongly Correlated Electrons · Physics 2021-09-08 Dhiman Bhowmick , Abhinava Chatterjee , Prasanta K. Panigrahi , Pinaki Sengupta

Dzyaloshinskii-Moriya interaction (DMI) is the primary mechanism for realizing real-space chiral spin textures, which are regarded as key components for the next-generation spintronics. However, DMI arises from a perturbation term of the…

Materials Science · Physics 2022-10-12 Fan Zhang , Xueao Li , Yabei Wu , Xiaolong Wang , Jijun Zhao , Weiwei Gao

The instability toward a magnetic skyrmion crystal in centrosymmetric trilayer magnets is investigated based on a spin model with layer-dependent Dzayloshinskii-Moriya interaction. We find various types of skyrmion crystal phases with…

Mesoscale and Nanoscale Physics · Physics 2022-06-10 Satoru Hayami

The Dzyaloshinskii-Moriya interaction (DMI) causes domain walls in perpendicular magnetized systems to adopt a homochiral configuration by winding in the same direction for both Up-Down and Down-Up walls. The topology of these domain walls…

Mesoscale and Nanoscale Physics · Physics 2018-06-04 G. V. Karnad , E. Martinez , M. Voto , T. Schulz , B. Ocker , D. Ravelosona , M. Kläui

In antiferromagnets, the Dzyaloshinskii-Moriya interaction lifts the degeneracy of left- and right-circularly polarized spin waves. This relativistic coupling increases the efficiency of spin-wave-induced domain wall motion and leads to…

Mesoscale and Nanoscale Physics · Physics 2018-02-09 Alireza Qaiumzadeh , Lars A. Kristiansen , Arne Brataas

Chiral magnetic states in two-dimensional (2D) layered noncentrosymmetric magnets, which are promising advanced spintronic materials, are usually attributed to Dzyaloshinskii-Moriya interactions (DMI). However, the role of underlying…

Materials Science · Physics 2024-03-19 Weiyi Pan , Changsong Xu , Xueyang Li , Zhiming Xu , Boyu Liu , Bing-Lin Gu , Wenhui Duan

We theoretically demonstrate that the presence of Dzyaloshinskii-Moriya Interaction (DMI) can lead to enhancement of the spin-motive force (SMF) arising due to field-induced ferromagnetic domain wall motion. A SMF refers to an electric…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Yuta Yamane

We characterize asymmetric growth of magnetic bubble domains in perpendicularly magnetized Co/Ni multi-layers grown on Pt$_x$Ir$_{1-x}$ seedlayers by application of perpendicular and in-plane magnetic fields. Using a refined model of domain…

Materials Science · Physics 2018-11-14 Derek Lau , James Price Pellegren , Hans Nembach , Justin Shaw , Vincent Sokalski

We study the collective dissipative dynamics of dipoles modeled as harmonic oscillators coupled to 1-D electromagnetic reservoirs. The bosonic nature of the dipole oscillators as well as the reservoir modes allows an exact numerical…

Quantum Physics · Physics 2024-11-05 Subhasish Guha , Ipsita Bar , Bijay Kumar Agarwalla , B. Prasanna Venkatesh

A theory for the spin wave eigenmodes of a Dzyaloshinskii domain wall is presented. These walls are N\'eel-type domain walls that can appear in perpendicularly-magnetized ultrathin ferromagnets in the presence of a sizeable…

Materials Science · Physics 2015-07-07 Pablo Borys , Felipe Garcia-Sanchez , Joo-Von Kim , Robert L. Stamps

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 study the proximity-induced superconducting state in a general bilayer -- conventional $s$-wave superconductor hybrid structure. For the bilayer we include a general parabolic dispersion, Rashba spin-orbit coupling, and finite layer…

Superconductivity · Physics 2015-02-03 Fariborz Parhizgar , Annica M. Black-Schaffer

This article presents a survey of many nontrivial effects connected with the coupling of electric and magnetic degrees of freedom in solids -- the field initiated by I.~E.~Dzyaloshinskii in 1959. I briefly consider the main physics of…

Strongly Correlated Electrons · Physics 2021-06-16 D. I. Khomskii

We investigate the spin-transfer torque in a magnetic multilayer structure by means of a spin-diffusion model. The torque in the considered system, consisting of two magnetic layers separated by a conducting layer, is caused by a…

We present an exact treatment of layered many-body electronic systems in the presence of interlayer coupling within the Schwinger functional derivative approach on the Keldysh contour. Our transparent approach allows us to clarify the…

Strongly Correlated Electrons · Physics 2020-07-01 Christopher Lane

We theoretically consider the spin-wave mode- and wavelength-dependent enhancement of the Gilbert damping in magnetic insulator--normal metal bilayers due to spin pumping as well as the enhancement's relation to direct and alternating…

Mesoscale and Nanoscale Physics · Physics 2017-06-28 André Kapelrud , Arne Brataas

The ability to engineer the interactions in assemblies of nanoscale magnets is central to the development of artificial spin systems and spintronic technologies. Following the emergence of the Dzyaloshinskii-Moriya interaction (DMI) in thin…

Mesoscale and Nanoscale Physics · Physics 2020-10-05 Aleš Hrabec , Zhaochu Luo , Laura J. Heyderman , Pietro Gambardella