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Título : Ballistic magnetoresistance in a magnetic nanometer sized contact: An effective gate for spintronics
Autor : García García, Nicolás, Muñoz, Manuel, Qian, G. G., Rohrer, Heinrich, Saveliev, I. G., Zhao, Y. W.
Fecha de publicación : 31-Dec-2001
Editor: American Institute of Physics
Resumen: We present experimental results of unprecedented large magnetoresistance obtained in stable electrodeposited Ni–Ni nanocontacts 10–30 nm in diameter. The contacts exhibit magnetoresistance of up to 700% at room temperature and low applied fields and, therefore, act as very effective spin filters. These large values of the magnetoresistance are attributed to spin ballistic transport through a magnetic "dead layer" at the contact of width of about 1 nm or smaller. Nanometer sized, high sensitive magnetoresistive sensors could become key elements for magnetic storage in the terabit/in.2 range and in high density magnetic random access memories.
Descripción : 3 pages, 2 figures.
Versión del editor:
ISSN: 0003-6951
DOI: 10.1063/1.1427152
Citación : Applied Physics Letters 79(27): 4550 (2001)
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