Topological and Correlated Phases in Thin Films of Cadmium Arsenide
Event Start:
2026-01-15T10:00:00
Event End:
2026-01-15T11:00:00
Event Information:
Bulk cadmium arsenide (Cd3As2) hosts topologically non-trivial bands in its electronic structure. In thin films, it can be engineered to a variety of new topological phases. In this talk, we will discuss topological and correlated insulator states in high-quality quantum wells of Cd3As2, which we grow by molecular beam epitaxy. Using Landau level spectroscopy, we show that the films transition to a two-dimensional topological insulator phase at quantum well thicknesses around 20 nm.
Event Location:
BRIM 311
Speaker:
Susanne Stemmer (UCSB)
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Event Start:
2026-01-15T10:00:00
Event End:
2026-01-15T11:00:00
Topological and Correlated Phases in Thin Films of Cadmium Arsenide
Event Information:
Bulk cadmium arsenide (Cd3As2) hosts topologically non-trivial bands in its electronic structure. In thin films, it can be engineered to a variety of new topological phases. In this talk, we will discuss topological and correlated insulator states in high-quality quantum wells of Cd3As2, which we grow by molecular beam epitaxy. Using Landau level spectroscopy, we show that the films transition to a two-dimensional topological insulator phase at quantum well thicknesses around 20 nm.
Event Location:
BRIM 311