Jordan Pack: New tools for studying correlated states in transition metal dichalcogenides

Date: Wednesday, October 8th, 2025

Location: Elings Hall, room 1601

Time: 1:30 pm - 2:30 pm

New tools for studying correlated states in transition metal dichalcogenides

Abstract: Two-dimensional transition metal dichalcogenide (TMD) semiconductors have demonstrated tremendous potential for the development of highly tunable quantum devices. Nevertheless, realizing the potential of these materials requires low-resistance electrical contacts that perform well at the low temperatures and low densities where quantum properties are relevant. I will share our efforts to improve the contact resistance to these materials using charge transfer with RuCl3 and the electronic phases this has allowed us to uncover – namely, the fractional quantum Hall effect in WSe2 and superconductivity in twisted WSe2. I will also share recent progress in applying these contacts to heterostructures where it is possible to directly investigate the monolayer electronic system with surface-
sensitive techniques.