QF Fellow and Associate seminar: Simon Munyan

Edge Mode Percolation and Equilibration in the Topological Insulator Cd3As2

Simon Munyan is a graduate research assistant in the Stemmer group. His current work focuses on charge transport in the 2D topological insulator (2D TI) state of Cd3As2 thin films. In this talk, he will present recent studies of edge mode transport through a nanoscale barrier in the quantum Hall regime of Cd3As2. He will demonstrate how disorder leads to transitions between Landau levels, which manifest as charge percolation through the barrier and give rise to fractional conductances. Finally, he will discuss the implications of these findings on elucidating the quantum spin Hall effect in Cd3As2.