Repositorio UFRO · Omeka S

Stability of Ferromagnetic Patterns Inscribed on Arrays of Multisegmented Magnetic Nanocylinders

Primer Autor	Cisternas, E.
Co-autores	Vogel, E. E.
Título	Stability of Ferromagnetic Patterns Inscribed on Arrays of Multisegmented Magnetic Nanocylinders
Editorial	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Revista	IEEE TRANSACTIONS ON MAGNETICS
Lenguaje	en
Resumen	Magnetic nanocylinders (MNs) can be grown inside of longitudinal nanoporous produced in alumina membranes by means of different techniques. In a similar way, multisegmented MNs (m-MNs) can be obtained by alternating magnetic and nonmagnetic materials during the fabrication process. In both cases, nanocylinders result axially parallel and forming triangular arrays immerse themselves within the membrane used to produce them. Due to shape anisotropy, each magnetic segment presents its magnetization pointing along the cylinder axis either inward or outward of the membrane plane. The as-grown system presents no global magnetization. A strong enough localized magnetic field can revert the magnetization of small groups of neighboring m-MNs. This feature can be used to inscribe ferromagnetic patterns (FP) over either membrane surface to store fixed information (security codes or firmware). Here, we study the total energy per cylinder for the case of a disc shaped FP inscribed over a circular membrane containing a huge amount of m-MNs. To try to prevent spontaneous magnetization reversion due to thermal effects we test for m-MNs a stabilization mechanism proposed previously for homogeneous MNs: an opposite ferromagnetic band (OFB) inscribed inside the FP. We have compared inscription and stabilization of FP over arrays of homogenous and multisegmented MNs.
Tipo de Recurso	Artículo de conferencia
doi	10.1109/TMAG.2013.2256886
Formato Recurso	pdf
Palabras Claves	Magnetic materials magnetic memories magnetic nanoparticles Materiales magnéticos memorias magnéticas nanopartículas magnéticas
Ubicación del archivo	http://dx.doi.org/10.1109/TMAG.2013.2256886
Materias	Magnetic materials magnetic memories magnetic nanoparticles Materiales magnéticos memorias magnéticas nanopartículas magnéticas
Disciplinas de la OCDE	Nanomateriales (Producción y Propiedades) Física de la Materia Condensada Ingeniería de los Materiales
Título de la cita (Recomendado-único)	Stability of Ferromagnetic Patterns Inscribed on Arrays of Multisegmented Magnetic Nanocylinders
Revista/Libro	IEEE TRANSACTIONS ON MAGNETICS
Tipo de ruta	hibrida verde
Access Rights	metadata
Derechos de acceso	metadata
Idioma	en
Identificador del recurso (Mandatado-único)	Artículo de conferencia
Versión del recurso (Recomendado-único)	versión publicada
Lugar de la conferencia(Recomendado-repetible)	10th Latin American Workshop on Magnetism, Magnetic Materials and their Applications (LAW3M)
Fecha de la conferencia(Recomendado-repetible)	APR 08-12, 2013
Editorial	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
ISSN	0018-9464
Página de inicio (Recomendado-único)	4703
Página final (Recomendado-único)	4706
Categoría WOS	Ingeniería eléctrica y electrónica Física aplicada Engineering, Electrical & Electronic Physics, Applied
Formato	pdf
Id de Web of Science	WOS:000323642800054