Propagación de paredes de dominio en diferentes Nano estructuras cuasi-unidimensionales
| dc.audience | Comunidad Universidad de Medellín | |
| dc.contributor.advisor | Velásquez Sierra, Éver Alberto | |
| dc.contributor.advisor | Mejía López, José | |
| dc.contributor.author | Murillo Polo, Jhonatan Alexánder | |
| dc.coverage.spatial | Lat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degreesLong: 075 36 00 W degrees minutes Long: -75.6000 decimal degrees | |
| dc.date | 2026-02-02 | |
| dc.date.accessioned | 2026-04-13T15:24:46Z | |
| dc.description | Esta tesis doctoral presenta el desarrollo y la validación del enfoque Fast Spin Dynamics (FASD), una metodología diseñada para simular la dinámica de la magnetización en nanoestructuras con gran eficiencia computacional. El autor combina la técnica de escalamiento con la ecuación de Landau-Lifshitz-Gilbert para estudiar fenómenos como la propagación de paredes de dominio en nanoalambres de hierro y sistemas de Permalloy. La investigación demuestra que las modulaciones geométricas y la presencia de defectos estructurales, como vacancias, alteran significativamente la velocidad y los procesos de nucleación magnética. Mediante la comparación con simulaciones micromagnéticas tradicionales, el estudio valida que el método propuesto reduce drásticamente los tiempos de cálculo sin perder la precisión física a nivel atomístico. Finalmente, los resultados ofrecen perspectivas valiosas para el diseño de dispositivos de almacenamiento y aplicaciones avanzadas en nanotecnología. | spa |
| dc.description | This doctoral thesis presents the development and validation of the Fast Spin Dynamics (FASD) approach, a methodology designed to simulate magnetization dynamics in nanostructures with high computational efficiency. The author combines the scaling technique with the Landau–Lifshitz–Gilbert equation to investigate phenomena such as domain wall propagation in iron nanowires and Permalloy systems. The research demonstrates that geometric modulations and the presence of structural defects, such as vacancies, significantly affect domain wall velocity and magnetic nucleation processes. By comparison with conventional micromagnetic simulations, the study validates that the proposed method drastically reduces computation times while maintaining physical accuracy at the atomistic level. Finally, the results provide valuable insights for the design of data storage devices and advanced applications in nanotechnology. | en |
| dc.description.degreelevel | Doctorado | |
| dc.description.degreename | Doctor en Modelación y Ciencia Computacional | |
| dc.format.extent | p. 1-149 | |
| dc.format.medium | Electrónico | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.other | T 0723 2025 | |
| dc.identifier.uri | https://repository.udemedellin.edu.co/handle/11407/9289 | |
| dc.language.iso | spa | |
| dc.publisher.faculty | Facultad de Ciencias Básicas | |
| dc.publisher.place | Medellín | |
| dc.publisher.program | Doctorado en Modelación y Ciencia Computacional | |
| dc.relation.citationendpage | 149 | |
| dc.relation.citationstartpage | 1 | |
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| dc.rights.accessrights | info:eurepo/semantics/openAccess | |
| dc.rights.creativecommons | Attribution-NonCommercial-ShareAlike 4.0 International | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0 | |
| dc.subject.lemb | Espín nuclear | |
| dc.subject.lemb | Espintrónica | |
| dc.subject.lemb | Nanoestructuras | |
| dc.subject.lemb | Nanotecnología | |
| dc.subject.lemb | Ondas de espín | |
| dc.title | Propagación de paredes de dominio en diferentes Nano estructuras cuasi-unidimensionales | spa |
| dc.type | info:eu-repo/semantics/doctoralThesis | |
| dc.type.coar | http://purl.org/coar/resource_type/c_db06 | |
| dc.type.hasversion | publishedVersion | |
| dc.type.hasversion | info:eu-repo/semantics/acceptedVersion | |
| dc.type.local | Tesis Doctoral |
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