Thesis defense of Julian Andreas Hochhaus
freestanding (2x2) phase is identified at a coverage of 0.28 ML, representing a precursor state for buckled alpha-stanene. Increasing the coverage leads to the formation of a long-range-ordered Au2Sn surface [...] graphene, has sparked intense interest in Xenes, monoelemental 2D lattices composed of heavier group-IV elements. Among these, stanene (2D tin) is a particularly promising candidate for next-generation [...] the X-phase is, in fact, a substrate-symmetry-breaking, square-like Sn arrangement growing atop the Au2Sn alloy, interpreted as the onset of beta-Sn (001)-like growth. Furthermore, a novel striped phase was …
