25 citations · 36 across the 2 of their papers we have counts for
4 papers
Splitting of critical energies in the =0 Landau level of graphene
Ana L. C. Pereira
The lifting of the degeneracy of the states from the graphene =0 Landau level (LL) is investigated through a non-interacting tight-binding model with random hoppings. A disorder…
Valley polarization effects on the localization in graphene Landau levels
Ana L. C. Pereira, P. A. Schulz
Effects of disorder and valley polarization in graphene are investigated in the quantum Hall regime. We find anomalous localization properties for the lowest Landau level (LL), whe…
Electrostatic theory for imaging experiments on local charges in quantum Hall systems
Ana L. C. Pereira, J. T. Chalker
We use a simple electrostatic treatment to model recent experiments on quantum Hall systems, in which charging of localised states by addition of integer or fractionally-charged qu…
Hidden Scaling in the Quantum Hall Metal-Insulator Transition
L. Moriconi, Ana L. C. Pereira, P. A. Schulz
Scaling properties of the quantum Hall metal-insulator transition are severely affected by finite size effects in small systems. Surprisingly, despite the narrow spatial range wher…