Condensed Matter Seminar - "Unconventional Superconducting Quantum Criticality in Monolayer WTe2"
- Event Type
- Seminar/Symposium
- Sponsor
- Physics - Condensed Matter
- Location
- ESB 190
- Date
- Sep 1, 2023 1:00 pm
- Speaker
- Sanfeng Wu, Princeton University
- Contact
- Stephen Bullwinkel
- bullwink@illinois.edu
- Phone
- 217-333-1652
- Views
- 230
- Originating Calendar
- Physics - Condensed Matter Seminar
Quantum critical points associated with quantum phase transitions are highly intriguing states of matter; yet they are difficult to study. An example is the superconductor to insulator or metal transition in two dimensions (2D), a topic that has a long history in condensed matter research, but many problems remain unsolved. In this talk, I will discuss our recent experimental finding of a quantum critical point in monolayer tungsten ditelluride (WTe2), a unique 2D crystal in which topology, strong correlations and superconductivity all occur in a single material. We directly measure superconducting quantum fluctuations, whose behaviors are so anomalous that an unusual explanation beyond the conventional Landau-Ginzburg paradigm is required.