Quantum Transport

We use analytical and computational techniques to study charge and spin transport in semiconductor and graphene devices. Some examples include the anomalous Hall effect in strongly spin-coupled semiconductors, the Aharonov-Casher effect in semiconductor rings, and imaging universal conductance fluctuations in graphene. As an example, the above figures are simulations of Scanning Probe Microscopy in graphene nanostructures. Here, in collaborations with Dr. Hennig (Max Planck) and Professor Heller (Harvard University), we study the flow of electrons in clean devices to ascertain if they are truly ballistic.