The electronic and vibrational properties of three different reconstructions of silicene on Ag(1 1 1) are calculated and compared to experimental results. The 2D epitaxial silicon layers, namely the (4 × 4), (?13 × ?13) and (2?3 × 2?3) phases, exhibit different electronic and vibrational properties. Few peaks in the experimental Raman spectrum are identified and attributed to the vibrational modes of the silicene layers. The position and behavior of the Raman peaks with respect to the excitation energy are shown to be a fundamental tool to investigate and discern different phases of silicene on Ag(1 1 1). © 2013 Elsevier B.V.

Vibrational properties of epitaxial silicene layers on (1 1 1) Ag

Cinquanta Eugenio;Chiappe Daniele;Grazianetti Carlo;Molle Alessandro;Fanciulli Marco;
2014

Abstract

The electronic and vibrational properties of three different reconstructions of silicene on Ag(1 1 1) are calculated and compared to experimental results. The 2D epitaxial silicon layers, namely the (4 × 4), (?13 × ?13) and (2?3 × 2?3) phases, exhibit different electronic and vibrational properties. Few peaks in the experimental Raman spectrum are identified and attributed to the vibrational modes of the silicene layers. The position and behavior of the Raman peaks with respect to the excitation energy are shown to be a fundamental tool to investigate and discern different phases of silicene on Ag(1 1 1). © 2013 Elsevier B.V.
2014
Istituto per la Microelettronica e Microsistemi - IMM
2D-silicon
DFT
Raman
Silicene
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/264699
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