Delocalization and conductance quantization in one-dimensional systems
无序系统与神经网络
2009-11-07 v2 介观与纳米尺度物理
摘要
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 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.
引用
@article{arxiv.cond-mat/0112260,
title = {Delocalization and conductance quantization in one-dimensional systems},
author = {Z. Y. Zeng and F. Claro},
journal= {arXiv preprint arXiv:cond-mat/0112260},
year = {2009}
}
备注
submitted to PRB