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- W2947347076 abstract "We show that the curvature of nanomagnets can be used to induce chiral textures in the magnetization field. Among the phenomena related to the interplay between geometry and magnetic behavior at nanomagnets, an effective curvature-induced Dzyaloshinskii-Moriya interaction has been recently predicted. In this work, by means of micromagnetic simulations and analytical considerations, we show that chiral interactions are induced in a ferromagnet with a curved landscape. It is shown that a magnetization configuration consisting of two structures with opposite winding numbers (vortex and antivortex) appear as remanent states. By comparing the results obtained for a torus and a hollow cylindrical ring, it is shown that these topological chiral configurations are a result of the Dzyaloshinkii-Moriya interaction induced by curvature. In this way, the obtained results present a new form to produce stable vortices and antivortices by using nanomagnets with variable curvature. Fynally, from studying the remanent state when a magnetic field is applied along $z$-axis direction, we show that as toroidal as cylindrical geometry present the same remanent state, consisting of a pair of vortice with opposite chiralities." @default.
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- W2947347076 date "2016-10-13" @default.
- W2947347076 modified "2023-09-27" @default.
- W2947347076 title "Vortex-antivortex pairs induced by curvature" @default.
- W2947347076 hasPublicationYear "2016" @default.
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