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Showing 1 to 10 of 10 for “"magnetic skyrmions"”.
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Magnetic Skyrmions in Multilayers with Interfacial Dzyaloshinskii-Moriya Interactions
<p>Magnetic skyrmions, topologically stable spin textures that can be driven by electric currents efficiently, have both rich physics and potential applications in future technology such as spintronic devices for data storage. Magnetic skyrmions in multilayers with interfacial Dzyaloshinskii-Moriya …
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Static and dynamic properties of magnetic Skyrmions in engineered multilayer films
Magnetic textures known as skyrmions promise new breakthroughs in memory, logic, and neuromorphic applications. Skyrmions have been found in a variety of material systems, yet there existed no experimental evidence of a material that could simultaneously host them at room temperature and also allow …
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Ordering processes and pattern formation in systems far from equilibrium
… present the relaxation and ordering processes in magnetic skyrmion systems. This is followed by a study of the behavior of many species interacting on a spatially heterogeneous lattice. Magnetic skyrmions have been a subject of great interest in recent years. They have been proposed to be at the …
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Nanometer scale observation of magnetization textures induced by ultrashort laser pulses
The manipulation of magnetic order with ultrashort laser pulses has become a vivid field in modern magnetism research. Laser pulses have been found to not only demagnetize magnetic materials on a femtosecond timescale, but even reverse the magnetization in certain (anti-)ferromagnetically coupled …
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Pattern formations and relaxation dynamics in non-equilibrium systems
… predator-prey games and systems of interacting magnetic skyrmions. We numerically study two predator-prey systems characterized by nested pattern formations. We first consider a six species game in which spiral patterns spontaneously form within coarsening domains. Through a systematic …
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Solitons and dualities in 2+1 dimensions
… class of Kähler manifolds. Third, we consider magnetic Skyrmions in ferromagnetic materials. We produce a continuum toy model of fractionalised electrons in three spatial dimensions describing magnetic Skyrmions and their creation and destruction via emergent magnetic monopoles. When an …
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Atomistic Study of Traveling Skyrmions in Multi-Sublattice Magnetic Materials
… novel material systems, and one such avenue is magnetic thin films. Bits of information can be encoded by magnetic twisted textures called skyrmions, which can be efficiently driven by applying electrical current. Recently, emphasis has been placed on investigating antiferromagnetic and …
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Magneto-thermal Transport and Machine Learning-assisted Investigation of Magnetic Materials
… including phonons, charge carriers, and magnetic excitations. In most materials, thermal transport can be understood as the flow of phonons and charge carriers; magnetic heat flow is less well-studied and less well understood. Recently, the concept of the flat band, with a vanishing …
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The Effects of Non-Magnetic and Magnetic Doping on the Skyrmion Hosting Material, Cu2OSeO3
… is the only insulating multiferroic that hosts magnetic skyrmions, which have been hypothesised as an alternative method to store data. These skyrmions arise from competing Heisenberg exchange and Dzyaloshinskii-Moriya interactions due to the non-centrosymmetric arrangement of the material’s …
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Topological Structures in Ferroic Materials
… as more complex structures such as vortices and skyrmions, which are spiralling configurations of the order parameter. This thesis investigates topological structures arising in both magnetic and ferroelectric structures, highlighting both the similarities and the differences in these material …