Graphene intercalation is a novel way to control graphene’s band structure and generate 2-d quantum materials with unusual spintronic and electronic properties. With high resolution surface diffraction we have systematically studied Pb intercalation on epi-graphene grown on SiC, with domain boundaries between buffer and single layer graphene. By examining the evolution of different diffraction spots as a function of temperature, the location of graphene and stability of the intercalated phases underneath were determined.
S. Chen, P. A. Thiel, E. Conrad, and M. C. Tringides, Phys. Rev. Mater. 4, 124005 (2020). “Growth and stability of Pb intercalated phases under graphene on SiC”