Colloquium speaker, Feng Wang (UC Berkeley) today at 3:45pm

[Patterson, Robin L.]

Please join us for the Physics Colloquium today, at 3:45 PM in The Robert Smith Seminar Room. There will be a reception at 3:30PM in the Atrium. Details concerning the talk are as follows:

Speaker:         Feng Wang (UC Berkeley)
Date:               Tuesday, November 5, 2019
Time:              3:45PM
Place:             1080 Physics Research Building, The Robert Smith Seminar Room
Title:                Engineering Correlation and Topology in Two–Dimensional Moiré Superlattices

Abstract: Van der Waals heterostructures of atomically thin crystals offer an exciting new platform to design novel electronic and optical properties. In this talk, I will describe a general approach to engineer correlated physics using moiré superlattice in two dimensional heterostructures. One example is the tunable Mott insulator realized in the ABC trilayer graphene (TLG) and hexagonal boron nitride (hBN) heterostructure with a moiré superlattice, where the moiré leads to narrow electronic minibands. Both the bandwidth and the topology of the electronic band can be controlled in this moiré superlattice. It allows us to realize a plethora of correlated phenomena, ranging from Mott insulator, superconductivity, orbital ferromagnetism, and Chern insulator, all in a single device by tuning the electrical field and carrier doping.

The website for the colloquium is https://physics.osu.edu/physics-colloquium-schedule


Also, there is the speaker/student discussion starting just after the colloquium, at 4:45pm in the Smith Seminar Room.



Robin
[The Ohio State University]
Robin Patterson
Program Coordinator
Department of Physics
1040K Physics Research Building, 191 W. Woodruff Avenue, Columbus, OH 43210
(614) 292-8523 Office     (614) 292-7557 Fax
patterson.716 at osu.edu<mailto:patterson.716 at osu.edu> osu.edu<http://osu.edu/>

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