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Theoretical investigation of the negative differential resistance in squashed molecular device
1.R. P. Andres, T. Bein, M. Dorogi, S. Feng, J. I. Henderson, C. P. Kubiak, W. Mahoney, R. G. Osifchin, and R. Reifenberger, Science 272, 1323 (1996).
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By applying nonequilibrium Green’s function and first-principles calculation, we investigate the transport behavior of squashed molecular devices. The results show that the electronic transportproperties are affected obviously by the deformation of molecule. Negative differential resistance is found in such system and can be tuned by the deformation degree of the molecule. A mechanism for the negative differential resistance behavior is suggested.
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