Spatial extension of exciton states in van der Waals heterostructure

POSTER

Abstract

We studied narrow lines in emission spectra of spatially indirect excitons, also known as interlayer excitons, in MoSe2/WSe2 van der Waals heterostructure. We found that the narrow lines extend over distances reaching several micrometers. The macroscopic spatial extension of exciton states corresponding to narrow lines indicates ordering in the local environment of excitons showing that excitons are confined in moiré potential with a weak disorder.

*The studies were supported by DOE award DE-FG02-07ER46449, the heterostructure manufacturing and data analysis were supported by NSF Grants 1905478 and 2516006.

Presenters

  • Zhiwen Zhou

    • University of California, San Diego

Authors

  • Zhiwen Zhou

    • University of California, San Diego

  • Erik Alexander Szwed

    • University of California, San Diego

  • Will J Brunner

    • University of California, San Diego

  • Helin Henstridge

    • University of California, San Diego

  • Lewis Fowler-Gerace

    • University of California, San Diego

  • Leonid V Butov

    • University of California, San Diego