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Dispositivo magnetorresistivo basado en múltiples nanocontactos, su procedimiento de obtención y usos

Authors: Ibarra García, Manuel Ricardo; García García, Nicolás;

Dispositivo magnetorresistivo basado en múltiples nanocontactos, su procedimiento de obtención y usos

Abstract

Sistema magnetorresistivo basado en múltiples nanocontactos. Se disponen partículas de materiales magnéticos entre electrodos metálicos. La corriente eléctrica se establece a través de nanocontactos entre estas partículas. La superficie de las partículas se modifica adecuadamente mediante tratamientos térmicos, mecánicos, presión etc., con la finalidad de obtener una variación de la composición en superficie que cambie las propiedades eléctricas o magnéticas. El fenómeno magnetorresistivo se produce por el paso de los electrones con una determinada polarización de espín a través de este material de superficie existente a ambos lados de los nanocontactos. La magnetorresistencia obtenida utilizando partículas de hierro con su superficie oxidada es del orden del 1000% a temperatura ambiente. Estos sistemas pueden ser utilizados como sensores sin contacto, cabezas lectoras, sensores de posición etc.

Referencia OEPM: P200501174.-- Fecha de solicitud: 06/05/2005.-- Titulares: Universidad de Zaragoza (Instituto de Nanociencia de Aragón), Consejo Superior de Investigaciones Científicas (CSIC).

Peer reviewed

Keywords

Magnetorresistencia, Materiales, Nanocontactos, Polarización de espín

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green