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Physics Colloquium: Quantum Materials Created with Scotch Tape

This is a past event.

Friday, October 4, 2019 at 1:30pm to 2:30pm

PG6 - Tech Station, 112
11200 SW 8th ST 33199, PG6 - Tech Station, Miami, Florida 33199

Prof. Xiaoqin Li

Physics Department, University of Texas-Austin

Abstract: By limiting the spatial dimension of electron motion, the allowed electron energy levels and the associated transport and optical properties can be modified. The ultimate two-dimensional quantum materials are to confine electrons to a layer that is only one atom or one unit-cell thick. One can create such atomically thin materials from a class of materials known as the van der Waals (vdW) materials using an almost ridiculously simple method called the scotch-tape method. While the most well-known example is graphene, a single layer of carbon atoms, the number of vdW materials being explored has expanded drastically in the last few years, partially thanks to machine learning computational methods. In this talk, I will present the most recent progress toward creating an array of single photon emitters based on two vertically stacked semiconductor monolayers, known as the moiré crystals.  

 

Bio: Xiaoqin Li received her B.S degree from Beijing Normal University in 1997 and her PhD in Physics in 2003 from the University of Michigan. She was a postdoc fellow at JILA, Colorado, from 2003-2006. She started as an assistant professor at UT-Austin in 2007 and was promoted to full professor in 2018.  Prof. Li has received a number of awards including the Presidential Early Career Award for Scientists and Engineers in the U. S., and a Sloan Fellowship. She is a Fellow of the American Physics Society.

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