Condensed Matter Theory Seminar - Jia Leo Li - “Angle-resolved transport nonreciprocity as a new method for probing 2D electrons”

Event time: 
Thursday, September 14, 2023 - 1:00pm to 2:00pm
Sloane Physics Laboratory SPL, Room 51 See map
217 Prospect Street
New Haven, CT 06511
Jia Leo Li - Brown University
Event description: 

In this talk, I will discuss a new aspect of electronic properties in a 2D confinement based on the angle-resolved transport nonreciprocity measurement. Nonreciprocity is defined as the difference in DC resistance between forward and reverse current bias. The angular dependence of nonreciprocity offers unique perspectives regarding the symmetry axis of the underlying electronic states. I will show the evolution of angle-resolved transport nonreciprocity across the phase space of multi-layer graphene samples, where the flat energy band enhances Coulomb correlation and stabilizes a host of exotic quantum phases. By investigating the interplay between transport nonreciprocity, ferromagnetism, and superconductivity, the angle-resolved transport nonreciprocity offers an efficient new tool for probing properties of 2D electrons.