%0 Journal Article
%T A case study for the formation of stanene on a metal surface
%J -
%D 2019
%R https://doi.org/10.1038/s42005-019-0111-2
%X The discovery and realization of graphene as an ideal two-dimensional (2D) material has triggered extensive efforts to create similar 2D materials with exciting spin-dependent properties. Here, we report on a novel Sn 2D superstructure on Au(111) that shows similarities and differences to the expected electronic features of ideal stanene. Using spin- and angle-resolved photoemission spectroscopy, we find that a particular Sn/Au superstructure reveals a linearly dispersing band centered at the \({\bar{\mathrm \Gamma }}\)-point and below the Fermi level with anti-parallel spin polarization and a Fermi velocity of vF ¡Ö 1¡Á106 m/s, the same value as for graphene. We attribute the origin of the band structure to the hybridization between the Sn and the Au orbitals at the 2D Sn-Au interface. Considering that free-standing stanene simply cannot exist, our investigated structure is an important step towards the search of useful stanene-like overstructures for future technological applications
%U https://www.nature.com/articles/s42005-019-0111-2