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Scaling behavior of disordered lattice fermions in two dimensions
- Source :
- Eur. Phys. J. B (2014) 87: 142
- Publication Year :
- 2012
-
Abstract
- We propose a lattice model for Dirac fermions which allows us to break the degeneracy of the node structure. In the presence of a random gap we analyze the scaling behavior of the localization length as a function of the system width within a numerical transfer-matrix approach. Depending on the strength of the randomness, there are different scaling regimes for weak, intermediate and strong disorder. These regimes are separated by transitions that are characterized by one-parameter scaling.<br />Comment: 9 pages, 8 figures
- Subjects :
- Condensed Matter - Disordered Systems and Neural Networks
Subjects
Details
- Database :
- arXiv
- Journal :
- Eur. Phys. J. B (2014) 87: 142
- Publication Type :
- Report
- Accession number :
- edsarx.1211.2329
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1140/epjb/e2014-41073-x