Abstract: The discovery of moiré materials has enabled the studies of condensed matter phenomena in a simpler and more controllable fashion. To a good approximation, the system can be regarded as a lattice of tunable artificial atoms, bridging the gap between real solid-state materials and cold atom quantum simulators. In this talk, I will use an archetypal semiconductor moiré material, angle-aligned MoTe 2 /WSe 2 bilayers, to illustrate how a rich set of condensed matter phenomena can be “simulated” in a single material by simply adjusting the gate voltages in a field-effect device. In particular, the realization of the Hubbard model, the Kane-Mele model and the Kondo lattice model will be discussed.
JQI Seminars are held on Mondays during Fall and Spring semesters at 11:00 a.m. Eastern Time in Room 2400 of the Atlantic Building. University of Maryland affiliates may participate using Zoom. The seminars are also livestreamed on the JQI YouTube channel (https://www.youtube.com/user/JQInews), which supports audience participation in the chat interface.