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The profile and energy of chiral skyrmions, found in magnetic materials with the Dzyaloshinskii-Moriya interaction, can be approximated by formulae obtained through asymptotic analysis in the limits of small and large skyrmion radius. Using…

Mesoscale and Nanoscale Physics · Physics 2023-02-22 Stavros Komineas , Christof Melcher , Stephanos Venakides

Fast and efficient switching of nanomagnets is one of the main challenges in the development of future magnetic memories. We numerically investigate the evolution of the static and dynamic spin wave (SW) magnetization in short (50-400 nm…

Mesoscale and Nanoscale Physics · Physics 2023-05-02 Diego Caso , Pablo Tuero , Javier Garcia , Konstantin Y. Guslienko , Farkhad G. Aliev

The Dzyaloshinskii-Moriya interaction (DMI) that arises in the magnetic systems with broken inversion symmetry plays an essential role in topological spintronics. Here, by means of atomistic spin calculations, we study an intriguing type of…

Materials Science · Physics 2022-12-13 Jinghua Liang , Mairbek Chshiev , Albert Fert , Hongxin Yang

Magnetic skyrmions are topologically-protected spin textures existing in helimagentic materials, which can be utilized as information carriers for non-volatile memories and logic circuits in spintronics. Searching simple and controllable…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Ya-qing Zheng , Yong Wang

The magnetic skyrmion structure can be formed in the chiral magnets (CMs) with strong Dzyaloshinskii-Moriya interactions. In this work, we propose a way of artificially tailoring the topological details of the skyrmion such as its radial…

Mesoscale and Nanoscale Physics · Physics 2016-10-06 Yin-Yan Zhang , Rui Zhu

We report a detailed investigation of the magnetic order in 192 stable magnetic two-dimensional materials from the Computational 2D Materials Database having one magnetic atom in the unit cell. The calculations are based on a systematic…

Materials Science · Physics 2024-08-09 Joachim Sødequist , Thomas Olsen

Low-symmetry two-dimensional (2D) topological materials such as MoTe$_2$ host efficient charge-to-spin conversion (CSC) mechanisms that can be harnessed for novel electronic and spintronic devices. However, the nature of the various CSC…

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 are topologically protected chiral spin textures which present opportunities for next-generation magnetic data storage and logic information technologies. The topology of these structures originates in the geometric…

Over the past decade a large family of spintronic devices have been proposed as candidates for replacing CMOS for future digital logic circuits. Using the recently developed Modular Approach framework, we investigate and identify the…

Mesoscale and Nanoscale Physics · Physics 2017-03-27 Samiran Ganguly , Kerem Yunus Camsari , Supriyo Datta

Topological magnetic textures - like skyrmions - have become a major player in the design of next-generation magnetic storage technology due to their stability and the control of their motion by ultra-low current densities. A major…

Strongly Correlated Electrons · Physics 2017-09-26 Karin Everschor-Sitte , Matthias Sitte , Thierry Valet , Ar. Abanov , Jairo Sinova

The Dzyaloshinskii-Moriya Interaction (DMI) between spins is induced by spin-orbit coupling in magnetic materials lacking inversion symmetry. DMI is recognized to play a crucial role at the interface between ferromagnetic (FM) and heavy…

Materials Science · Physics 2015-12-31 Hongxin Yang , André Thiaville , Stanislas Rohart , Albert Fert , Mairbek Chshiev

Magnetic skyrmions are topologically non-trivial spin textures of potential interest for future information storage applications, and for such purposes, the control and understanding of single skyrmion creation is required. A scheme is…

Mesoscale and Nanoscale Physics · Physics 2016-05-11 Gen Yin , Yufan Li , Lingyao Kong , Roger K. Lake , C. L. Chien , Jiadong Zang

The Coulomb phase, with its dipolar correlations and pinch-point-scattering patterns, is central to discussions of geometrically frustrated systems, from water ice to binary and mixed-valence alloys, as well as numerous examples of…

Dzyaloshinskii-Moriya interaction (DMI) is vital to form various chiral spin textures, novel behaviors of magnons and permits their potential applications in energy-efficient spintronic devices. Here, we realize a sizable bulk DMI in a…

Magnetic skyrmion, a topological magnetic domain with complex non-coplanar spin texture, appears a disk-like structure in two dimensions. Exploring three-dimensional spin texture and related chirality switching has drawn enormous interests…

Materials Science · Physics 2022-10-26 Yuan Yao , Bei Ding , Jinjing Liang , Hang Li , Xi Shen , Richeng Yu , Wenhong Wang

Dzyaloshinskii-Moriya interaction is at heart of chiral magnetism and causes emergence of rich non-collinear and unique topological spin textures in magnetic materials, including cycloids, helices, skyrmions and other. Here we show that…

Mesoscale and Nanoscale Physics · Physics 2020-09-09 Denis Sabani , Cihan Bacaksiz , Milorad V. Milosevic

The Dzyaloshinkii-Moriya (DM) interaction that originates from relativistic spin-orbit coupling in noncentrosymmetric magnets is a source of topological spin textures. We theoretically investigate the possibility of a skyrmion crystal by…

Strongly Correlated Electrons · Physics 2022-07-04 Satoru Hayami , Ryota Yambe

The interfacial Dzyaloshinskii-Moriya interaction (DMI) in multilayers of heavy metal and ferromagnetic metals enables the stabilization of novel chiral spin structures such as skyrmions. Magnetic insulators, on the other hand can exhibit…

We develop a comprehensive theory of twisted bilayer magnetism. Starting from the first-principles calculations of two-dimensional honeycomb magnet CrI3, we construct the generic spin models that represent a broad class of twisted bilayer…

Strongly Correlated Electrons · Physics 2022-06-13 Kyoung-Min Kim , Do Hoon Kiem , Grigory Bednik , Myung Joon Han , Moon Jip Park
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