Condensed Matter Seminar

January 24 2019

G126 noon

 

Rahul Nandkishore

University of Colorado

 

Parquet RG approach to Moire heterostructures: a chiral phase diagram

Abstract

I present a weak coupling parquet RG analysis of a toy model motivated by Moire heterostructures. I show that this model naturally supports a phase diagram that resembles the celebrated high-Tc phase diagram, but with a chiral twist. Namely, close to a certain filling, there arises a correlated insulator state (with enhanced energy scales), which gives way upon doping to a superconductor. However, the insulating state is chiral, exhibiting quantized anomalous Hall effect. The superconductor is also chiral (d + i d).