The authors have observed magnetoresistance (MR) ratios of 12% and 0.1% at 4.2 and 290K, respectively, in a nanocomposite in which Co nanoparticles are embedded in the fine molecular structure of a tris(8-hydroxyquinoline) aluminum (Alq3) matrix. Structural analyses, magnetization measurements, and conduction properties of the device reveal that the MR effect is induced by spin-dependent transport in the Alq3.
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Tanabe et al. (2007) studied this question.
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