Anomalous polarization dependence of Raman scattering and crystallographic orientation of black phosphorus
Anomalous polarization dependence of Raman scattering and crystallographic orientation of black phosphorus
We investigated polarization dependence of the Raman modes in black phosphorus (BP) using five different excitation wavelengths. The crystallographic orientation was determined by comparing polarized optical microscopy with high-resolution transmission electron microscope analysis. In polarized Raman spectroscopy, the B2g mode shows the same polarization dependence regardless of the excitation wavelength …