27 citations · 95 across the 8 of their papers we have counts for
8 papers
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…
Floating of critical states and the QH to insulator transition
H. Potempa, L. Schweitzer
The transition from the quantum Hall state to the insulator is considered for non-interacting electrons in a two-dimensional disordered lattice model with perpendicular magnetic fi…
Levitation of Current Carrying States in the Lattice Model for the Integer Quantum Hall Effect
Th. Koschny, H. Potempa, L. Schweitzer
The disorder driven quantum Hall to insulator transition is investigated for a two-dimensional lattice model. The Hall conductivity and the localization length are calculated numer…
Localization of electrons in two-dimensional spatially-correlated random magnetic fields
H. Potempa, L. Schweitzer
The localization properties of electrons moving in a plane perpendicular to a spatially-correlated static magnetic field of random amplitude and vanishing mean are investigated. We…
Critical level statistics of a quantum Hall system with Dirichlet boundary conditions
H. Potempa, L. Schweitzer
We investigate numerically the influence of Dirichlet boundary conditions on the nearest neighbor level spacing distribution of a two-dimensional disordered tight-binding mo…
Influence of boundary conditions on level statistics and eigenstates at the metal insulator transition
L. Schweitzer, H. Potempa
We investigate the influence of the boundary conditions on the scale invariant critical level statistics at the metal insulator transition of disordered three-dimensional orthogona…