Vibrational Spectra of MO (M=Sn/Pb) in Their Bulk and Single Layer Forms: Role of Avoided Crossing in their Thermodynamic Properties

Raju K Biswas, Swapan K Pati

We report ab-initio calculations of the phonon dispersion relation on the bulk and single layer of SnO and PbO. We identify Raman active modes and infrared active modes at the zone…