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Charge-transfer polaron induced negative differential resistance and giant magnetoresistance in organic spin-valve systems

Wei, J. H., Xie, S. J., Mei, L. M., Berakdar, J., Yan, Y. J.

New Journal of Physics 8, pp 82 (2006)

Based on the static polaron Su-Schrieffer-Heeger model and the nonequilibrium Green's function formalism, we investigate the negative differential resistance (NDR) effect in organic spin-valve systems at low temperature and interpret it with a self-doping picture. A giant negative magnetoresistance exceeding 300 percent is theoretically predicted as the results of the NDR effects.

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