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相关论文: Chiral domain wall dynamics in magnetic heterostru…

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Using in-plane field dependence of the precessional flow of chiral domain walls (DWs) to simultaneously determine bulk and interfacial Dzyaloshinskii-Moriya interactions (DMIs) is proposed. It is found that effective fields of bulk and…

介观与纳米尺度物理 · 物理学 2020-05-04 Jie Lu , Mei Li , X. R. Wang

The orientation of a chiral magnetic domain wall in a racetrack determines its dynamical properties. In equilibrium, magnetic domain walls are expected to be oriented perpendicular to the stripe axis. We demonstrate the appearance of a…

The domain wall dynamics driven by an out of plane magnetic field was measured for a series of magnetic trilayers with different strengths of the interfacial Dzyaloshinskii-Moriya interaction (DMI). The features of the field-driven domain…

介观与纳米尺度物理 · 物理学 2021-07-20 J. Pena Gracia , A. Fassatoui , J. Vogel , A. Thiaville , S. Pizzini

We demonstrate here that ultrathin ferromagnetic Pt/Co/Pt films with perpendicular magnetic anisotropy exhibit a sizeable Dzyaloshinskii-Moriya interaction (DMI) effect. Such a DMI effect modifies the domain-wall (DW) energy density and…

材料科学 · 物理学 2017-04-25 Soong-Geun Je , Duck-Ho Kim , Sang-Cheol Yoo , Byoung-Chul Min , Kyung-Jin Lee , Sug-Bong Choe

The Dzyaloshinskii-Moriya interaction (DMI) in magnetic systems stabilizes spin textures with preferred chirality, applicable to next-generation memory and computing architectures. In perpendicularly magnetized heavy-metal/ferromagnet…

We consider a thin ferromagnetic layer to which an external field or a current are applied along an in plane easy axis. The perpendicular hard axis anisotropy constant is large so that the out of plane magnetization component is smaller…

介观与纳米尺度物理 · 物理学 2018-10-24 E. A. Cardenas , M. C. Depassier

We present an analytic study of domain-wall statics and dynamics in ferromagnetic nanotubes with spin-orbit-induced Dzyaloshinskii-Moriya interaction (DMI). Even at the level of statics, dramatic effects arise from the interplay of space…

介观与纳米尺度物理 · 物理学 2016-02-24 Arseni Goussev , J. M. Robbins , Valeriy Slastikov , Oleg A. Tretiakov

Recent experimental studies of magnetic domain expansion under easy-axis drive fields in materials with a perpendicular magnetic anisotropy have shown that the domain wall velocity is asymmetric as a function of an external in plane…

介观与纳米尺度物理 · 物理学 2019-09-18 Dion M. F. Hartmann , Rembert A. Duine , Mariëlle J. Meijer , Henk J. M. Swagten , Reinoud Lavrijsen

The establishment of chiral coupling in thin magnetic films with inhomogeneous anisotropy has led to the development of artificial systems of fundamental and technological interest. The chiral coupling itself is enabled by the…

介观与纳米尺度物理 · 物理学 2021-12-07 Zhentao Liu , Zhaochu Luo , Stanislas Rohart , Laura J. Heyderman , Pietro Gambardella , Aleš Hrabec

There has been a plethora of studies on domain wall dynamics in magnetic nanostrips, mainly because of its versatile non-linear physics and potential applications in data storage devices. However, most of the studies focus on out-of-plane…

介观与纳米尺度物理 · 物理学 2022-07-27 Zhoujian Sun , Panpan Fang , Xinwei Shi , X. S. Wang , Fuxiang Li

We have carried out measurements of domain wall dynamics in a Pt/Co/GdOx(t) wedge sample with perpendicular magnetic anisotropy. When driven by an easy-axis field Hz in the presence of an in-plane field Hx, the domain wall expansion along x…

材料科学 · 物理学 2015-10-29 M. Vanatka , J. -C. Rojas-Sanchez , J. Vogel , M. Bonfim , A. Thiaville , S. Pizzini

The dynamics of domain walls in ultrathin ferromagnetic strips with perpendicular magnetic anisotropy is studied from both numerical and analytical micromagnetics. The influence of the interfacial Dzyaloshinskii-Moriya interaction…

材料科学 · 物理学 2016-04-20 L. Sánchez-Tejerina , Ó. Alejos , E. Martínez , J. M. Muñoz

Domain walls (DWs) in perpendicularly magnetized nanotracks (PMNTs) with interfacial Dzyaloshinskii-Moriya interaction (DMI) have become the primary objects of theoretical and experimental interest due to their technological suitability in…

计算物理 · 物理学 2018-11-22 Yue Zhang , Mao-Kang Shen , Zai-Dong Li , Xiao-Fei Yang , Long You

It is well documented that subjecting perpendicular magnetic films which exhibit the interfacial Dzyaloshinskii-Moriya interaction (DMI) to an in-plane magnetic field results in a domain wall (DW) energy, $\sigma$, that is highly…

材料科学 · 物理学 2017-07-19 Price Pellegren , Derek Lau , Vincent Sokalski

Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the current-induced torque and…

The interfacial Dzyaloshinskii-Moriya interaction (DMI) is of great interest as it can stabilize chiral spin structures in thin films. Experiments verifying the orientation of the interfacial DMI vector remain rare, in part due to the…

Recent advances in nanofabrication make it possible to produce multilayer nanostructures composed of ultrathin film materials with thickness down to a few monolayers of atoms and lateral extent of several tens of nanometers. At these…

介观与纳米尺度物理 · 物理学 2018-02-07 Cyrill B. Muratov , Valeriy V. Slastikov

The Dzyaloshinskii-Moriya interaction (DMI) is an antisymmetric exchange interaction, which is responsible for the formation of topologically protected spin textures in chiral magnets. Here, by measuring the dispersion relation of the DM…

介观与纳米尺度物理 · 物理学 2023-09-20 Khalil Zakeri , Alberto Marmodoro , Albrecht von Faber , Sergiy Mankovsky , Hubert Ebert

Chiral domain walls in ultrathin perpendicularly magnetised layers have a N\'{e}el structure stabilised by a Dzyaloshinskii-Moriya interaction (DMI) that is generated at the interface between the ferromagnet and a heavy metal. Different…

Chiral spin textures at the interface between ferromagnetic and heavy nonmagnetic metals, such as Neel-type domain walls and skyrmions, have been studied intensively because of their great potential for future nanomagnetic devices. The…

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