Twist and Strain in Square Moire Patterns of Stacked Graphene Layers - Carrasco, Roberto; Escudero, Federico; Zhan, Zhen; Rio, Eva Cortes-del; Vina-Bausa, Beatriz; Maximenko, Yulia; Pantaleon, Pierre A; Pantaleon, Pierre A; Guinea, Francisco; Brihuega, Ivan (Physical Review Letters, 2026)