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Realizing sizeable Dzyaloshinskii-Moriya interaction (DMI) in intrinsic two-dimensional (2D) magnets without any manipulation will greatly enrich potential application of spintronics devices. The simplest and most desirable situation should…

材料科学 · 物理学 2022-09-26 Yonglong Ga , Qirui Cui , Jinghua Liang , Dongxing Yu , Yingmei Zhu , Liming Wang , Hongxin Yang

Chiral magnets give rise to the anti-symmetric Dzyaloshinskii-Moriya (DM) interaction, which induces topological nontrivial textures such as magnetic skyrmions. The topology is characterized by integer values of the topological charge. In…

强关联电子 · 物理学 2018-02-28 Wen-Tao Hou , Jie-Xiang Yu , Morgan Daly , Jiadong Zang

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…

材料科学 · 物理学 2022-10-12 Fan Zhang , Xueao Li , Yabei Wu , Xiaolong Wang , Jijun Zhao , Weiwei Gao

First version: del Barco et al. submitted recently a comment [arXiv:0812.4070] on our latest Phys. Rev. Lett. [Phys. Rev. Lett. 101, 237204 (2008)], claiming three basic mistakes. We show here that their claims are unjustified and based on…

介观与纳米尺度物理 · 物理学 2009-05-31 W. Wernsdorfer , T. C. Stamatatos , G. Christou

General properties of the chiral scattering of polarized neutrons are considered for two possible axial vector interactions: Zeeman energy and non-alternating Dzyaloshinskii-Moriya interaction. Behavior in magnetic field of helical magnetic…

强关联电子 · 物理学 2009-11-11 S. V. Maleyev

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

A novel general method of describing the spin-lattice interactions in magnetic solids was proposed in terms of first principles calculations. The spin exchange and Dzyaloshinskii-Moriya interactions as well as their derivatives with respect…

强关联电子 · 物理学 2011-12-30 H. J. Xiang , E. J. Kan , Su-Huai Wei , M. -H. Whangbo , X. G. Gong

We derive a set of equations expressing the parameters of the magnetic interactions characterizing a strongly correlated electronic system in terms of single-electron Green's functions and self-energies. This allows to establish a mapping…

强关联电子 · 物理学 2016-01-20 Andrea Secchi , Alexander I. Lichtenstein , Mikhail I. Katsnelson

We consider a class of one-dimensional compass models with antisymmetric Dzyaloshinskii-Moriya exchange interaction in an external magnetic field. Based on the exact solution derived by means of Jordan-Wigner transformation, we study the…

强关联电子 · 物理学 2014-09-23 Wen-Long You , Guang-Hua Liu , Peter Horsch , Andrzej M. Oleś

Recent neutron scattering measurements on the spinel CdCr2O4 revealed a rare example of helical magnetic order in geometrically frustrated pyrochlore antiferromagnet. The spin spiral characterized by an incommensurate wavevector Q = 2pi (0,…

强关联电子 · 物理学 2013-02-19 Eunsong Choi , Gia-Wei Chern , Natalia Perkins

We consider the spin-1/2 isotropic XY chain in a (z) transverse magnetic field with the Dzyaloshinskii-Moriya interaction directed along the z-axis in spin space and examine the effects of the latter interaction on the zz, xx (yy) and xy…

强关联电子 · 物理学 2007-12-18 Oleg Derzhko , Taras Verkholyak

The search for chiral magnetic textures in systems lacking spatial inversion symmetry has attracted a massive amount of interest in the recent years with the real space observation of novel exotic magnetic phases such as skyrmions lattices,…

材料科学 · 物理学 2015-11-06 Abderrezak Belabbes , Gustav Bihlmayer , Stefan Blügel , Aurelien Manchon

Quark interaction with topologically non-trivial gluonic fields, instantons and sphalerons, violates \P and \CP symmetry. In the strong magnetic field of a non-central nuclear collision such interactions lead to the charge separation along…

核实验 · 物理学 2014-11-20 Sergei A. Voloshin

Here by combining a symmetry-based analysis with numerical computations we predict a new kind of magnetic ordering - antichiral ferromagnetism. The relationship between chiral and antichiral magnetic order is conceptually similar to the…

强关联电子 · 物理学 2021-07-21 Filipp N. Rybakov , Anastasiia Pervishko , Olle Eriksson , Egor Babaev

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…

介观与纳米尺度物理 · 物理学 2020-10-05 Aleš Hrabec , Zhaochu Luo , Laura J. Heyderman , Pietro Gambardella

We consider a simple integrable model of a spin chain exhibiting the Magnetoelectric Effect (MEE). Starting from the periodic S=1/2 XXZ-chain with Dzyaloshinskii-Moriya terms, which we consider as a local electric polarization in the spirit…

强关联电子 · 物理学 2013-02-18 Michael Brockmann , Andreas Klümper , Vadim Ohanyan

We explore the emergence of chiral magnetism in one-dimensional monatomic Mn, Fe, and Co chains deposited at the Pt(664) step-edge carrying out an ab-initio study based on density functional theory (DFT). The results are analyzed employing…

介观与纳米尺度物理 · 物理学 2016-07-13 Benedikt Schweflinghaus , Bernd Zimmermann , Marcus Heide , Gustav Bihlmayer , Stefan Blügel

We present a Greens function approach to calculate the Dzyaloshinskii-Moriya interactions (DMI) from first principles electronic structure calculations, that is computationally more efficient and accurate than the most-commonly employed…

材料科学 · 物理学 2021-03-10 Farzad Mahfouzi , Nicholas Kioussis

Chiral magnetic insulators manifest novel phases of matter where the sense of rotation of the magnetization is associated with exotic transport phenomena. Effective control of such phases and their dynamical evolution points to the search…

材料科学 · 物理学 2023-01-24 Paula Mellado , Kevin Hofhuis , Ignacio Tapia , Andres Concha

Broken inversion symmetry in combination with the spin-orbit interaction generates a finite Dzyaloshinskii-Moriya interaction (DMI), which can induce noncollinear spin textures of chiral nature. The DMI is characterized by an interaction…

介观与纳米尺度物理 · 物理学 2020-09-09 Flaviano José dos Santos , Manuel dos Santos Dias , Samir Lounis