期刊论文详细信息
Electron localization in a two-channel tight-binding model with correlated disorder | |
Article | |
关键词: DIMENSIONAL ANDERSON MODEL; MOBILITY EDGE; DELOCALIZATION; TRANSPORT; SYSTEMS; ABSENCE; | |
DOI : 10.1103/PhysRevB.76.134202 | |
来源: SCIE |
【 摘 要 】
We calculate the localization length in a two-channel tight-binding model for correlated disordered site potential. Both intra- and interchannel correlations are taken into account. The localization length is obtained in quadratic approximation by expanding the two-channel conductance over weak disorder. The result is applied to a simple two-stranded model of DNA molecule and it is shown that a strong pair coupling between the basic nucleotides in the strands is not sufficient to delocalize electronic states.
【 授权许可】
Free