Abstract
We have studied numerically the fluctuations of the conductance, , and the applicability of single parameter scaling in two-dimensional disordered noninteracting systems. We have checked that the variance of varies with the lateral sample size as . In agreement with this, we have introduced a parameter to establish the applicability of the single-parameter scaling (SPS) hypothesis. We have found that SPS is satisfied in two-dimensional systems, except for the fluctuation states in the band tails, where a second parameter is needed.
- Received 8 February 2005
DOI:https://doi.org/10.1103/PhysRevB.72.024206
©2005 American Physical Society