2001/12/31 by Z. Y. Zeng, F. Claro · 2 citations
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Spectroscopy and Quantum Chemical Studies #cond-mat.dis-nn #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.65.193405
published as Phys. Rev. B 65, 193405 (2002) · submitted to PRB
openalex publication_date 2002/05/10 · arxiv created 2002/05/11 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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 appearance 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 2e2/h for odd samples and is smaller for even parity. This result suggests that this even-odd behavior found previously in the presence of electron correlations may be unrelated to charging effects in the sample.