Repositorio UFRO · Omeka S

Bloch point nanospheres for the design of magnetic traps

Primer Autor	Vidal-Silva, N
Co-autores	Tejo, F. Zambrano-Rabanal, C. Carvalho-Santos, V. L.
Título	Bloch point nanospheres for the design of magnetic traps
Editorial	AIP Publishing
Revista	APPLIED PHYSICS LETTERS
Lenguaje	en
Resumen	Through micromagnetic simulations, this work analyzes the possibility of using an array of magnetic nanospheres hosting Bloch points (BPs) to compose a system with the features of a magnetic trap (MT). We show that a BP can be nucleated as a metastable configuration in a wide range of the nanosphere radius compared to a quasi-uniform and vortex state. We also show that the stabilized BP generates a quadrupolar magnetic field outside the nanosphere. Based on this fact, we analyze the field profile of different arrays of these nanospheres, showing that the obtained magnetic field profiles share the needed features to compose MTs. Some highlights of using an array of Bloch point nanospheres in MTs rely on the magnetic field gradients achieved, which are orders of magnitude higher than similar standard systems, and allow three-dimensional trapping. Our results could be useful in trapping particles through the intrinsic magnetization of ferromagnetic nanoparticles while avoiding the commonly used mechanisms associated with Joule heating.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.1063/5.0160535
Formato Recurso	PDF
Palabras Claves	micromagnetic simulations magnetic nanospheres Mesoscale and Nanoscale Physics
Ubicación del archivo	http://dx.doi.org/10.1063/5.0160535
Categoría OCDE	Física
Materias	simulaciones micromagnéticas nanoesferas magnéticas Física de mesoescala y nanoescala
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
Derechos de acceso	metadata
Access Rights	metadata
Id de Web of Science	WOS:001063792500009
ISSN	0003-6951
Tipo de ruta	verde
Categoría WOS	Física
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID-FONDECYT 3220527 INCT-SpinNanoMag CNPq 406836/2022-1. CNPQ 305256/2022-0 ANID-FONDECYT APQ-00648-22 CNPQ 11220046 Fapemig Agencia Nacional de Investigación y Desarrollo (ANID)-FONDECYT 3220527 Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) 406836/2022-1. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) 305256/2022-0 Agencia Nacional de Investigación y Desarrollo (ANID)-FONDECYT APQ-00648-22 Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) 11220046