Delocalization and conductance quantization in one-dimensional systems

Z. Y. Zeng; F. Claro

doi:10.1103/physrevb.65.193405

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arXiv · cond-mat/0112260

Delocalization and conductance quantization in one-dimensional systems

Z. Y. Zeng·F. Claro

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Abstract

We investigate the delocalization and conductance quantization in finite one-dimensional chains with only off-diagonal disorder coupled to leads. It is shown that the appearence of delocalized states at the middle of the band under correlated disorder is strongly dependent upon the even-odd parity of the number of sites in the system. In samples with inversion symmetry the conductance equals $2e^{2}/h$ for odd samples, and is smaller for even parity. This result suggests that this even-odd behaviour found previously in the presence of electron correlations may be unrelated to charging effects in the sample.

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Z. Y. Zeng, F. Claro. 2002-05-11. Delocalization and conductance quantization in one-dimensional systems. https://doi.org/10.1103/physrevb.65.193405

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