Exponents of the localization lengths in the bipartite Anderson model with off-diagonal disorder

Details Exponents of the localization lengths in the bipartite Anderson model with off-diagonal disorder Exponents of the localization lengths in the bipartite Anderson model with off-diagonal disorder

2000-07-06

arxiv.org/abs/cond-mat/0007102v1

Physica B, 296 (2001) 46-51

Physics

Condensed Matter

Disordered Systems and Neural Networks

6 pages, 8 EPS-figures, requires phbauth.cls

Scientific paper

10.1016/S0921-4526(00)00777-8

We investigate the scaling properties of the two-dimensional (2D) Anderson model of localization with purely off-diagonal disorder (random hopping). In particular, we show that for small energies the infinite-size localization lengths as computed from transfer-matrix methods together with finite-size scaling diverge with a power-law behavior. The corresponding exponents seem to depend on the strength and the type of disorder chosen.

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