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Engineering graphene moiré systems using proximity effect

Jia Leo Li, Brown University
Thursday, December 2, 2021 - 12:30pm to 1:20pm
PAT C-520

It has been shown that a simple twist between graphene layers gives rise to a flat energy band structure, where strong Coulomb correlation unlocks a rich landscape of quantum ground states such as correlation-driven insulators, superconductivity, and ferromagnetism. Here I will show results from recent experiments designed to further engineer graphene moire systems using the proximity effect. Using a combination of transport and thermodynamic measurement, I will demonstrate the dramatic influence of the proximity effect on both the band structure and ground state order of graphene moire systems. I will also discuss the implications of these findings on our understanding of graphene moiré systems.

Host at UW: Matt Yankowitz