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相关论文: Dynamic symmetry breaking in chiral magnetic syste…

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The Dzyaloshinskii-Moriya interaction (DMI) plays a critical role in stabilizing topological spin textures, a key area of growing interest in oxide-based spintronics. While most of reported topological phenomena found in manganites are…

材料科学 · 物理学 2024-08-12 L. Yang , X. Zhang , H. Wang , N. Lei , J. Wang , Y. Sun , L. Liu , Z. Zhao , Y. Yang , D. Wei , D. Pan , J. Zhao , J. Shen , W. g Zhao , H. Lu , W. Wang , H. Yu

We present a general approach for studying the dynamics of domain walls in biaxial ferromagnetic stripes with functionally graded Dzyaloshinskii-Moriya interaction (DMI). By engineering the spatial profile of the DMI parameter we propose…

A constant magnetic field in 3+1 and 2+1 dimensions is a strong catalyst of dynamical chiral symmetry breaking, leading to the generation of a fermion mass even at the weakest attractive interaction between fermions. The essence of this…

高能物理 - 理论 · 物理学 2009-10-28 V. A. Miransky

Chirality, an intrinsic preference for a specific handedness, is a fundamental characteristic observed in nature. In magnetism, magnetic chirality arises from the anti-symmetric Dzyaloshinskii-Moriya interaction in competition with the…

We present a mechanism for deterministic control of the Bloch chirality in magnetic domain walls and skyrmions, originating from the interplay between an interfacial Dzyaloshinskii$-$Moriya interaction (DMI) and a perpendicular magnetic…

材料科学 · 物理学 2022-05-04 Michael Kitcher , Larry Chen , Marc De Graef , Vincent Sokalski

Skyrmions are topological spin textures of interest for fundamental science and applications. Previous theoretical studies have focused on systems with broken bulk inversion symmetry, where skyrmions are stabilized by easy-axis anisotropy.…

强关联电子 · 物理学 2016-02-16 James Rowland , Sumilan Banerjee , Mohit Randeria

We theoretically study the Dzyaloshinskii-Moriya interaction (DMI) mediated by band electrons with strong spin-orbit coupling (SOC). We first derive a general formula for the coefficient ${\bm D}_i$ of the DMI in free energy in terms of…

介观与纳米尺度物理 · 物理学 2023-11-08 Yuto Hayakawa , Yusuke Imai , Hiroshi Kohno

Motivated by recent experimental polarized neutron results, we present a numerical micromagnetic study of the interfacial (intergrain) Dzyaloshinskii-Moriya interaction (DMI) in nanocrystalline terbium. We demonstrate that the DMI-induced…

介观与纳米尺度物理 · 物理学 2023-08-16 S. Erokhin , D. Berkov , A. Michels

We study the spin orbit torque (SOT) and Dzyaloshinskii-Moriya interaction (DMI) in the dual-interfaced Co-Ni perpendicular multilayers. Through the combination of top and bottom layer materials (Pt, Ta, MgO and Cu), SOT and DMI are…

Manipulation of the domain wall propagation in magnetic wires is a key practical task for a number of devices including racetrack memory and magnetic logic. Recently, curvilinear effects emerged as an efficient mean to impact substantially…

Multilayers of heavy metals and ferromagnets are the basis for the formation of various structures with inhomogeneous chiral magnetic distributions. The most informative method for studying magnetic states in such structures with a high…

材料科学 · 物理学 2021-01-08 D. A. Tatarskiy , N. S. Gusev , S. A. Gusev

The interfacial Dzyaloshinskii-Moriya interaction (DMI) has been shown to stabilize homochiral N\'eel-type domain walls in thin films with perpendicular magnetic anisotropy and as a result permit them to be propagated by a spin Hall torque.…

介观与纳米尺度物理 · 物理学 2016-10-13 R. A. Khan , P. M. Shepley , A. Hrabec , A. W. J. Wells , B. Ocker , C. H. Marrows , T. A. Moore

It is shown that the Dzialoshinskii-Moriya interaction leads to asymmetrical deformation of the transverse domain wall profile in one-dimensional biaxial magnet. Amplitude of the deformation is linear with respect to the Dzialoshinskii…

强关联电子 · 物理学 2015-06-18 Volodymyr P. Kravchuk

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…

介观与纳米尺度物理 · 物理学 2025-12-25 Bowen Ma , Z. D. Wang

Thermally activated domain wall (DW) motion in magnetic insulators has been considered theoretically, with a particular focus on the role of Dzyaloshinskii-Moriya Interaction (DMI) and thermomagnonic torques. The thermally assisted DW…

介观与纳米尺度物理 · 物理学 2016-09-28 X. -G. Wang , L. Chotorlishvili , G. -H. Guo , A. Sukhov , V. Dugaev , J. Barnas , J. Berakdar

Magnetization dynamics driven by an electric field could provide long-term benefits to information technologies because of its ultralow power consumption. Meanwhile, the Dzyaloshinskii-Moriya interaction in interfacially asymmetric…

介观与纳米尺度物理 · 物理学 2019-01-23 Chuang Ma , Xichao Zhang , Jing Xia , Motohiko Ezawa , Wanjun Jiang , Teruo Ono , S. N. Piramanayagam , Akimitsu Morisako , Yan Zhou , Xiaoxi Liu

A two dimensional ferromagnetic XY model with its bound vortex-antivortex dominated quasi long range ordered phase at low temperatures is a long standing as well as well studied problem of interest in the field of condensed matter. We…

强关联电子 · 物理学 2026-04-07 Rajdip Banerjee , Satyaki Kar

The Rashba effect leads to a chiral precession of the spins of moving electrons while the Dzyaloshinskii-Moriya interaction (DMI) generates preference towards a chiral profile of local spins. We predict that the exchange interaction between…

Van der Waals ferromagnets, such as Fe5GeTe2, offer a promising platform for spintronic devices based on chiral magnetic textures, provided a significant Dzyaloshinskii-Moriya interaction (DMI) can be induced to stabilise the textures.…

材料科学 · 物理学 2025-09-22 J. Sampaio , A. Pascaud , E. Quero , A. Thiaville , V. Polewczyk , A. Marty , F. Bonell , A. Mougin

We revisit the description of ferromagnetic domain wall dynamics through an extended one-dimensional model by allowing flexural distortions of the wall during its motion. This is taken into account by allowing the domain wall center and…

介观与纳米尺度物理 · 物理学 2018-08-29 Rémy Soucaille , Felipe Garcia-Sanchez , Joo-Von Kim , Thibaut Devolder , Jean-Paul Adam