Colloquium Event

Video From Feng Wang UC-Berkeley - “Designing Artificial Quantum Materials with van der Waals Heterostructures”

Date
Tue February 1st 2022, 3:30pm
Location
Hewlett Teaching Center, Rm. 200

Video Link

 

Stanford University

 

APPLIED PHYSICS/PHYSICS COLLOQUIUM

 

Tuesday, February 1, 2022

3:30 p.m. on campus in Hewlett Teaching Center, Rm. 200

Light refreshments served in Varian lobby at 2:45 p.m.

Please register to attend: https://forms.gle/Kr9g3ow7T1bkJjDE7

Please wear face coverings and practice social distancing

In-person attendance limited to Stanford affiliates

Zoom webinar link: https://stanford.zoom.us/j/95490048727?pwd=R2pJdHZPblBGK3VKYmIxL0ZTRVpXUT09

Password: email dmoreau [at] stanford.edu (dmoreau[at]stanford[dot]edu) for password

 

Feng Wang
UC-Berkeley

 

“Designing Artificial Quantum Materials with van der Waals Heterostructures”

 

Van der Waals heterostructures of atomically thin crystals offer an exciting new platform to design artificial quantum materials with novel and tunable quantum phases. In this talk, I will describe a general approach to engineer correlated and topological physics using moire superlattice in two dimensional heterostructures. One example is the transition metal dichalcogenide moire sueprlattices, where a rich set correlated insulator and generalized Wigner crystal states can be observed. The other example is the ABC trilayer graphene (TLG) and hexagonal boron nitride (hBN) moire superlattice, where both the bandwidth and the topology of the electronic band can be controlled electrically. It enables the realization of many quantum phases, ranging from Mott insulator and superconductivity to orbital ferromagnetism and Chern insulator, all in a single device through electrostatic gating.