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Moiré Superlattices and Their Potential for Quantum Information Science

September 14, 2020 - 11:00am
Elaine Li
University of Texas

A new type of superlattice, known as the moiré superlattice, forms when two monolayers of van der Waals materials are vertically stacked. The period of the moire superlattice is readily controlled by the lattice constant mismatch and the twist angle. The energy modulation within a supercell varies as much as a few hundred meV, effectively trapping carriers and excitons. These superlattices exhibit a host of rich properties that may find applications in quantum information science such as an array of single quantum emitters and quantum simulations. 

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