Probing Valley Dynamics in van der Waals heterostructures
· Invited
Abstract
Van der Waals heterostructures composed of stacked atomically thin layers can exhibit novel phenomena due to the unique layer-layer interactions. In this talk, I will describe the observation of high-purity and long-lived valley polarization with microsecond lifetime in transition metal dichalcogenide heterostructures. I will also discuss spatially and temporally resolved imaging of pure valley and spin current in the WS2/WSe2 heterostructure.
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Presenters
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Feng Wang
- Physics, Univ of California - Berkeley
- University of California, Berkeley
- Univ of California - Berkeley
- University of California at Berkeley
- UC Berkeley and LBNL