Emergent Relativistic Effects in Condensed Matter
From Fundamental Aspects to Electronic Functionality

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24.01.2018

Dielectric Engineering of Electronic Correlations in a van der Waals Heterostructure

We demonstrate how a capping layer of hexagonal boron nitride renormalizes the internal structure of excitons in a WSe2 monolayer using intraband transitions. Our results provide key insight into the effect of nonlocal screening on electron−hole correlations and open new possibilities of dielectric engineering of van der Waals heterostructures.
Ph. Steinleitner, Ph. Merkl, A. Graf, Ph. Nagler, K. Watanabe, T. Taniguchi, J. Zipfel, Chr. Schüller, T. Korn, A. Chernikov, S. Brem, M. Selig, G. Berghäuser, E. Malic. Nano Lett. 18, 1402–1409 (2018).

 

https://pubs.acs.org/doi/10.1021/acs.nanolett.7b05132

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