Bloch point nanospheres for the design of magnetic traps
Primer Autor |
Vidal-Silva, N
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Co-autores |
Tejo, F.
Zambrano-Rabanal, C.
Carvalho-Santos, V. L.
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Título |
Bloch point nanospheres for the design of magnetic traps
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Editorial |
AIP Publishing
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Revista |
APPLIED PHYSICS LETTERS
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Lenguaje |
en
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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.
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Fecha Publicación |
2023
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Tipo de Recurso |
artículo original
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doi |
10.1063/5.0160535
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Formato Recurso |
PDF
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Palabras Claves |
micromagnetic simulations
magnetic nanospheres
Mesoscale and Nanoscale Physics
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Ubicación del archivo | |
Categoría OCDE |
Física
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Materias |
simulaciones micromagnéticas
nanoesferas magnéticas
Física de mesoescala y nanoescala
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Identificador del recurso (Mandatado-único) |
artículo original
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Versión del recurso (Recomendado-único) |
versión publicada
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Derechos de acceso |
metadata
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Access Rights |
metadata
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Id de Web of Science |
WOS:001063792500009
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ISSN |
0003-6951
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Tipo de ruta |
verde
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Categoría WOS |
Física
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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
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