Characterization of epitaxial silicene with Raman spectroscopy

Kukucska, G. and Zólyomi, V. and Koltai, J. (2018) Characterization of epitaxial silicene with Raman spectroscopy. Phys. Rev. B, 98. 075437.

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Abstract

Silicene,thesiliconequivalentofgraphene,ismostcommonlygrownonAg(111)substrateswhereitundergoes reconstructionduetothestronginteractionbetweentheSiandAgatoms.Wedemonstratethroughfirst-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.

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