Heterostrain physics in twisted graphene layers

Published : 15 July 2019

The study of twisted graphene layers (graphene layers stacked with a rotation between the layers) has been recently boosted by the discovery of new correlated states of matter (superconductivity and Mott insulator) in this full carbon system. Such new physics occurs due to electron-electron interactions boosted at peculiar rotation angles between the layers. We have recently shown that the electronic properties of such not only depend on the rotation between the layers but also on relative deformations of the layers which we have called heterostrain. The aim of the present project is to control and study heterostrain, hunting for potential new states of matter.

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