Exponents of the localization length in the 2D Anderson model with off-diagonal disorder

Details Exponents of the localization length in the 2D Anderson model with off-diagonal disorder Exponents of the localization length in the 2D Anderson model with off-diagonal disorder

2004-04-05

arxiv.org/abs/cond-mat/0404089v1

phys. stat. sol. (b) 241, 2079-2088 (2004).

Physics

Condensed Matter

Disordered Systems and Neural Networks

10 pages, 9 figures, uses PSS style files (included), submitted to phys. stat. sol. (b)

Scientific paper

10.1002/pssb.200404793

We study Anderson localization in two-dimensional systems with purely off-diagonal disorder. Localization lengths are computed by the transfer-matrix method and their finite-size and scaling properties are investigated. We find various numerically challenging differences to the usual problems with diagonal disorder. In particular, the divergence of the localization lengths close to the band centre is investigated in detail for bipartite and non-bipartite lattices as well as different distributions of the off-diagonal disorder. Divergence exponents for the localization lengths are constructed that appear to describe the data well down to at least 10^-5. We find only little evidence for a crossover energy scale below which the power law has been argued to fail.

Affiliated with

Also associated with

No associations

Rating

Exponents of the localization length in the 2D Anderson model with off-diagonal disorder does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Exponents of the localization length in the 2D Anderson model with off-diagonal disorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exponents of the localization length in the 2D Anderson model with off-diagonal disorder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-666488