Fig. 1From: Study of Thermometry in Two-Dimensional Sb2Te3 from Temperature-Dependent Raman SpectroscopySchematic of Sb2Te3 crystal showing the arrangement of atoms and van der Waals gap. The pink, light blue and black circles represent the Te(1), Sb and Te(2) atoms, respectively. The left panel shows the possible phonon modes in the frequency range 100 cm−1 to 200 cm−1. The arrows represent direction of vibrations of constituent atomsBack to article page