Flat bands emerging in buckled monolayer graphene superlattices have been recently shown to realize correlated states analogous those observed twisted multilayers. Here, we demonstrate the emergence of valley topology driven by competing electronic correlations superlattices. We show, both means atomistic models and a low-energy description, that existence long-range leads competition between a...

Selective laser sintering has been used to manufacture different structural variations of a pre-buckled circular honeycomb. The mechanical behaviour these structures examined under both quasi-static and dynamic impact loading. Pre-buckled honeycombs with aspect ratios e = 0.8 0.6 were compared traditional, straight-walled It found that the honeycomb can be tailored yield responses. Principally,...

The anisotropic correlation between buckled dimers on Si(100) was investigated by scanning tunneling microscopy. A bidentate ligand molecule was used to pin two neighboring dimers at 300 K. The chemically pinned dimer induces antiferromagnetic interaction along the dimer rows. Observed results agree well with Monte-Carlo simulations semi-quantitatively.