Skip to Content

Sponsors

No results

Tags

No results

Types

No results

Search Results

Events

No results
Search events using: keywords, sponsors, locations or event type
When / Where
All occurrences of this event have passed.
This listing is displayed for historical purposes.

Department of Physics pres.

CM Theory Seminar | Topological and Fractional Electronic States in Graphene Heterostructures

Eric Spanton (University of California Santa Barbara)

Graphene is a highly tunable platform for studying the effects of electron-electron interactions in two dimensions. Encapsulation with a 2D dielectric (hexagonal boron nitride, hBN), and more recently the use of single-crystal graphite top and bottom gates have decreased the electronic disorder to a level suitable for the to study fragile and exotic strongly correlated states. Additionally, control of twist angle between closely-matched crystal lattices allows for unique control of electronic properties, leading to the “Hofstadter butterfly” and more recently unconventional superconductivity. I will describe newly discovered exotic fractional quantum Hall states and a class of related states called fractional Chern insulators, both in high quality graphene heterostructures. These measurements show that graphene is an intriguing platform for realizing new topological and fractional phases, and opens new routes towards realizing interesting quantum phase transitions and manipulating non-abelian quasiparticles for quantum computation.

Co-Sponsored By

Explore Similar Events

  •  Loading Similar Events...
Report Event As Inappropriate Contact Event Organizers
Back to Main Content