Dirac cones in graphene grown on a half-filled 4d-band transition metal

Growth of 1D ClAlPc molecular chains mediated by graphene moiré patterns

“…As previously reported, 30 graphene monolayers grown on Rh(110) can adopt angular orientations within the intervals of (−10°, 0°) and (0°, 10°) as measured between the 2D material lattice and the [001] direction of the underlying metal, with a preference for angles around 0° and ±10°. Precisely, for twist angles around 0° (aligned), the surface presents incommensurate quasi-1D moiré patterns, which are parallel, or nearly parallel, to the graphene lattice, with a separation of ∼1 nm between moiré fringes.…”

“…This work presents the moiré pattern-guided growth of equally oriented 1D molecular wires composed of individual polar chloro-aluminium phthalocyanine (ClAlPc) molecules, brought together by van der Waals interactions, on Gr/Rh(110) surfaces, which are characterized by the coexistence of rotational domains with quasi-1D moiré patterns. 30 As revealed by STM imaging at 40 K, the moiré pattern arising from the alignment, or near alignment, of the atomic lattice of graphene in the Rh[001] direction plays a crucial role as a guide for the formation of molecular chains at low molecular coverages. For high molecular coverages, the growth of 1D molecular arrays of ClAlPc becomes unfavourable, and a phase transition towards a more densely packed square lattice configuration takes place.…”

Lateral Heterostructures of Graphene and h‐BN with Atomic Lattice Coherence and Tunable Rotational Order

“…It displays, along with the atomic periodicity of the Rh(110) surface, the characteristic arcs of graphene, associated with the coexistence of multiple rotational domains, which is consistent with a previous work on full layer graphene grown on Rh(110). [ 29 ] Sample morphology, as revealed by large scale scanning tunneling microscope (STM) images (see Figure 1b), is characterized by graphene islands grown on the Rh(110) support, covering ≈30% of its surface. High resolution STM images acquired inside the islands (see Figure 1c,d) show, along with the atomic periodicity of graphene, stripe‐like moiré patterns akin to the ones previously reported for graphene monolayers grown on Rh(110).…”

“…High resolution STM images acquired inside the islands (see Figure 1c,d) show, along with the atomic periodicity of graphene, stripe‐like moiré patterns akin to the ones previously reported for graphene monolayers grown on Rh(110). [ 29 ]…”

“…High resolution STM images acquired inside the islands (see Figure 1c,d) show, along with the atomic periodicity of graphene, stripe-like moiré patterns akin to the ones previously reported for graphene monolayers grown on Rh(110). [29] Once the effects of the first growth step have been addressed, the analysis of the morphological and structural features of the G_h-BN in-plane heterostructures, obtained after a subsequent CVD process using borazine as a precursor, will be presented. Figure 2a shows a typical LEED pattern obtained in these samples, which displays the characteristic arcs of graphene grown on this metal surface (compare with Figure 1a).…”