161 citations · 220 across the 7 of their papers we have counts for
7 papers
Self-consistent calculation of electric potentials in Hall devices
Tobias Kramer, Viktor Krueckl, Eric J. Heller +1
Using a first-principles classical many-body simulation of a Hall bar, we study the necessary conditions for the formation of the Hall potential: (i) Ohmic contacts with metallic r…
The quantum Hall effect under the influence of a top-gate and integrating AC lock-in measurements
Tobias Kramer, Eric J. Heller, Robert E. Parrott
Low frequency AC-measurements are commonly used to determine the voltage and currents through mesoscopic devices. We calculate the effect of the alternating Hall voltage on the rec…
Half integer features in the quantum Hall Effect: experiment and theory
Tobias Kramer, Eric J. Heller, Robert E. Parrott +6
The quantum Hall effect is one of the most important developments in condensed matter physics of the 20th century. The standard explanations of the famous integer quantized Hall pl…
Theory of the quantum Hall effect in graphene
Tobias Kramer, Christoph Kreisbeck, Viktor Krueckl +3
We study the quantum Hall effect (QHE) in graphene based on the current injection model. In our model, the presence of disorder, the edge-state picture, extended states and localiz…
An efficient and accurate method to obtain the energy-dependent Green function for general potentials
Tobias Kramer, Eric J. Heller, Robert E. Parrott
Time-dependent quantum mechanics provides an intuitive picture of particle propagation in external fields. Semiclassical methods link the classical trajectories of particles with t…
Imaging Magnetic Focusing of Coherent Electron Waves
K. E. Aidala, R. E. Parrott, T. Kramer +4
The magnetic focusing of electrons has proven its utility in fundamental studies of electron transport. Here we report the direct imaging of magnetic focusing of electron waves, sp…