Séminaire en ligne : Vincent Renard (Grenoble)

"Heterostrain determines the flatbands in twisted gaphene layers.”

Le prochain séminaire virtuel du GDR HOWDI aura lieu le mardi 9 novembre 2021 à 14h.
Nous recevrons Vincent Renard (Grenoble, France)
"Heterostrain determines the flatbands in twisted gaphene layers.”

Résumé :

The strongly correlated electron physics recently observed in twisted graphene layers develops in flat bands , which are very sensitive to the relative arrangement between the layers. The twist angle as attracted most of the attention as it is the leading structural parameter. Heterostrain, the in-plane deformation of one layer with respect to the other, is an ubiquitous source of modification of the relative arrangement between the layers which effect has been much less investigated. Performing a detailed meta-analysis of published scanning tunneling microscope data, I will show that heterostrain allows to understand quantitatively the large sample variability observed in experiments in the non interacting limit and raises the question of its influence on strongly correlated electron phases.

Pour se connecter :

https://zoom.us/j/97179781921?pwd=VGVXR0ZvL1h1UDlYZGVmazA1eDNvZz09

ID de réunion : 971 7978 1921
Code secret : Cn3vKz