Electronic properties of thin Sb films on hexagonal lattice substrates
Chi-Hsuan Lee1*, Chih-Kai Yang1
1The Graduate Institute of Applied Physics, National Chengchi University, Taipei city, Taiwan
* presenting author:李啟玄, email:chl00@nccu.edu.tw
It has been shown that thin antimony films can have topological surface states by adsorption of nonmagnetic impurity atoms. Using density functional calculations, we show electronic properties of Sb films placed on hexagonal lattice substrates, such as graphene. Thin Sb films on boron-doped graphenes have Dirac cones and can provide spin-polarized transport. The calculated binding energy indicates that it is a robust structure and thus a viable conduit for topological conduction.

Keywords: thin films, electronic properties