Realization of a Two-Dimensional Checkerboard Lattice in Monolayer Cu<sub>2</sub>N
Realization of a Two-Dimensional Checkerboard Lattice in Monolayer Cu<sub>2</sub>N
Two-dimensional checkerboard lattice, the simplest line-graph lattice, has been intensively studied as a toy model, while material design and synthesis remain elusive. Here, we report theoretical prediction and experimental realization of the checkerboard lattice in monolayer Cu2N. Experimentally, monolayer Cu2N can be realized in the well-known N/Cu(100) and N/Cu(111) systems …