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Title: | Ballistic magnetoresistance in a magnetic nanometer sized contact: An effective gate for spintronics |
Authors: | García García, Nicolás; Muñoz, Manuel; Qian, G. G.; Rohrer, Heinrich; Saveliev, I. G.; Zhao, Y. W. | Issue Date: | 31-Dec-2001 | Publisher: | American Institute of Physics | Citation: | Applied Physics Letters 79(27): 4550 (2001) | Abstract: | 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. | Description: | 3 pages, 2 figures. | Publisher version (URL): | http://dx.doi.org/10.1063/1.1427152 | URI: | http://hdl.handle.net/10261/21067 | DOI: | 10.1063/1.1427152 | ISSN: | 0003-6951 |
Appears in Collections: | (LFSPyN) Artículos |
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