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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/188636
Equilibrium magnetization configurations in helical magnets
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We have taken an in-depth study of curvature effects on the magnetism of low dimensional nanostructures.
We present a general theoretical framework based on a continuous approach to the micromagnetic relevant energy terms (exchange and anisotropy). The model shows that curvature induces effective anisotropy and Dzyaloshinskii-Moriya interactions that are not present in conventional cases. We have particularized the study to helical ferromagnetic helices, and found that they exhibit stable magnetization transitions between quasi-tangential to onion-like configurations. By performing atomistic Monte Carlo simulations, we have validated the theoretical framework and obtained a phase diagram of both phases. We have also performed MC simulations considering only dipolar interactions and found that abrupt magnetic ground state configuration transitions can be induced
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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2022, Tutor: Òscar Iglesias Clotas
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GARCÉS ORTIZ, Ot. Equilibrium magnetization configurations in helical magnets. [consulta: 23 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/188636]