|Our group conducts research on the frontier problems of quantum transport of electron charge and spin in a variety of nanostructures. The that we are currently pursuing include:
We are also working on the development of new theoretical and computational formalisms, often involving massively parallel codes, which are required to study quantum many-body systems far from equilibrium. The principal tools that we employ daily include nonequilibrium Green function theory, density functional theory, and dynamical mean field theory.
Our research is supported by the National Science Foundation and the U.S. Department of Energy.
| The image on the left depicts graphene nanoribbon which is converted into a two-dimensional topological insulator (2D TI) using heavy adatoms (which locally enhance spin-orbit coupling). We have predicted that the edge currents in this 2D TI will generate highly optimized Seebeck coefficient, while its nanopores will block phonon propagation, which together conspire to produce a thermoelectric figure of merit at low temperatures .
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