Speaker
Joel Hutchinson
Description
Advances in the manipulation of van der Waals materials have shown that bilayers offer a unique platform for studying strongly correlated physics in two-dimensions (2D). Bilayers are importantly different from monolayers in that there exist long-range interactions between electrons in both the intra- and inter-layer channels, which differ only slightly. We show that the electronic charge susceptibility has peaks arising from scattering across the Fermi surfaces, not seen in the usual Lindhard function. In a bilayer system, these peaks give rise to an enhanced response of out-of-plane dipoles to local potential differences across the layers. This response is not diminished by screening and becomes larger in the low-density limit.
| Theoretical Work | Theory |
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Authors
Daniel Loss
(University of Basel)
Dr
Dmitry Miserev
(University of Basel)
Jelena Klinovaja
(University of Basel)
Joel Hutchinson
