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Correspondence
Nature Materials 7, 598 (1 August 2008) | doi:10.1038/nmat2248
Magnetoresistance in organic semiconductors
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Abstract
To the editor: Hu and Wu recently reported tunable magnetoresistance (MR) in organic semiconductors, claiming that the geometry of multilayer diodes controls the relative influence of (electron–hole) polaron-pair (PP) dissociation and recombination under magnetic fields (B). The underlying hypothesis is B-dependent intersystem crossing (ISC), conversion between spin manifolds of intermolecular exciton precursor PPs or (intramolecular) excitons.
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