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Length-dependent oscillations of the conductance through atomic chains: The importance of electronic correlations

Rafael A. Molina·Dietmar Weinmann·Jean-Louis Pichard
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Abstract

We calculate the conductance of atomic chains as a function of their length. Using the Density Matrix Renormalization Group algorithm for a many-body model which takes into account electron-electron interactions and the shape of the contacts between the chain and the leads, we show that length-dependent oscillations of the conductance whose period depends on the electron density in the chain can result from electron-electron scattering alone. The amplitude of these oscillations can increase with the length of the chain, in contrast to the result from approaches which neglect the interactions.

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Rafael A. Molina, Dietmar Weinmann, Jean-Louis Pichard. 2004-02-11. Length-dependent oscillations of the conductance through atomic chains: The importance of electronic correlations. https://doi.org/10.1209/epl%2Fi2004-10045-5

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