The group has two fridges devoted to electrical transport and differential conductance measurements. These allow us to probe novel proximity effects, edge modes, and electronic carrier responses. The former is studied via Andreev Reflection spectroscopy, wherein the local conductance is measured versus applied current or voltage. These can be performed from 1.5K to 325 K in closed cycle systems with 9T applied while rotating the sample over 200 degrees. Quantum Oscillations, Hall, and longitudinal transport are also measured to extract information on the Fermi surface, single particle, and transport lifetimes.
Modulation Doping via a Two-Dimensional Atomic Crystalline Acceptor Nano Letters (2020)
Evidence for Helical Hinge Zero Modes in an Fe-Based Superconductor Nano Letters (2020)
Proximity-induced high-temperature superconductivity in the topological insulators Bi2Se3 and Bi2Te3 Nature Communications (2012)