29 citations · 87 across the 6 of their papers we have counts for
6 papers
Scaling at chiral quantum critical points in two dimensions
L. Schweitzer, P. Markos
We study the localization properties of electrons moving on two-dimensional bi-partite lattices in the presence of disorder. The models investigated exhibit a chiral symmetry and b…
Logarithmic scaling of Lyapunov exponents in disordered chiral two-dimensional lattices
P. Markos, L. Schweitzer
We analyze the scaling behavior of the two smallest Lyapunov exponents for electrons propagating on two-dimensional lattices with energies within a very narrow interval around the…
Critical conductance of two-dimensional chiral systems with random magnetic flux
P. Markos, L. Schweitzer
The zero temperature transport properties of two-dimensional lattice systems with static random magnetic flux per plaquette and zero mean are investigated numerically. We study the…
Metal-insulator transition in two-dimensional disordered systems with power-law transfer terms
H. Potempa, L. Schweitzer
We investigate a disordered two-dimensional lattice model for noninteracting electrons with long-range power-law transfer terms and apply the method of level statistics for the cal…
Influence of Correlated Disorder Potentials on the Levitation of Current Carrying States in the Quantum Hall Effect
Th. Koschny, L. Schweitzer
The disorder driven quantum Hall to insulator transition is investigated for a two-dimensional lattice system. We consider a Gaussian correlated random potential, study the behavio…
Extended Fractons and Localized Phonons on Percolation Clusters
Jan W. Kantelhardt, Armin Bunde, L. Schweitzer
We investigate the localization behavior of vibrational modes of infinite percolation clusters above the critical concentration in two and three dimensions using the method of leve…