Quantized conductance and giant MR effec
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C.A. Dartora; Gustavo A. Viana; G.G. Cabrera
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Article
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2007
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Elsevier Science
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English
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In this paper we investigate the origin of the giant magnetoresistance effect in atomic-sized magnetic contacts within the framework of Landauer's theory, which relates scattering to conductance in a direct way. It is believed that in magnetic contacts the scattering mechanism is spin-dependent, pro