Quantum Confinement in Aligned Zigzag “Pseudo‐Ribbons” Embedded in Graphene on Ni(100)

Lateral quantum confinement is of great interest in tuning the electronic properties graphene-based nanostructures, making them suitable for technological applications. In principle, these might be controlled through edge topology: example, zigzag nanoribbons are predicted to have spin-polarized states. The practical realization structures utmost importance fully harnessing graphene. Here, formation regular, 1.4 nm wide ribbon-like graphene with edges reported, showing 1D It found that “pseudo-ribbons” embedded single-layer supported on Ni(100) can spontaneously form upon carbon segregation underneath moiré domains, extending hundreds nanometers length. On basis both microscopy/spectroscopy/diffraction experiments and theoretical simulations, it shown structures, even though seamlessly incorporated a matrix strongly interacting graphene, exhibit closely resembling those nanoribbons.