Shear-resistant topology in quasi one-dimensional van der Waals material Bi${}_4$Br${}_4$

Jonathan K. Hofmann, Hoyeon Jeon, Saban M. Hus +10

Bi${}_4$Br${}_4$ is a prototypical quasi one-dimensional (1D) material in which covalently bonded bismuth bromide chains are arranged in parallel, side-by-side and layer-by-layer, with…