Characterization of epitaxial silicene with Raman spectroscopy
Received 27 November 2017; revised manuscript received 18 June 2018; published 30 August 2018
Thanks for the referees for their quick work <bazingaaa>!
Silicene, the silicon equivalent of graphene, is most commonly grown on Ag(111) substrates where it undergoes reconstruction due to the strong interaction between the Si and Ag atoms. We demonstrate through first-principles density functional theory for eight reconstructions that the Raman spectrum is unique for each configuration. We argue that the reconstructions can, in fact, be identified by their Raman spectra and suggest key features within the spectra as points of reference to be used for identification.
