Current Applied Sciences
Interdisciplinary Journal

Phonon Spectra of Monolayer Silicon Carbide

Document Type : Short Communications

Authors

Samira Salimi 1
Hojat Allah Badehian 1
Ziad Badehian 2

1 Department of Physics, Fasa University, Fasa, Iran

2 Department of Mathematics, Islamic Azad University of Larestan, Larestan, Iran

https://doi.org/10.22034/cas.2022.322464.1007
Abstract
Silicon carbide monolayer is a promising material in the semiconductor industry. The silicon and carbon elements in the two-dimensional silicon carbide are arranged in a two-dimensional hexagonal lattice. The quantum of the crystal lattice vibrations, namely phonons, dominate mainly the physical characteristic of the crystals as a result of electron mobility. It is clear that the number of phonons is zero, from 85 meV to 117 meV. In addition, the silicon carbide monolayer sees its phonon density of states (PDOS) maximum at 140 meV, confirming that there are more allowed phonon energy levels at this point of energy. There are four peaks from 0 eV to 85 eV, indicating optical phonons and zone boundary (ZB) phonons. For the low-range energy, all electronic sub-bands correlate acoustic phonons, where the transverse acoustic phonons have lower energy than the longitudinal acoustic modes.

Graphical Abstract

Phonon Spectra of Monolayer Silicon Carbide

Keywords

Silicon carbide monolayer
PDOS
Phonon band structure
Computer simulation
Current Applied Sciences
Volume 1, Issue 2 - Serial Number 2
December 2023
Pages 91-96

  • Receive Date 01 January 2023
  • Revise Date 13 February 2023
  • Accept Date 13 February 2023

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