Raman anomalies as signatures of pressure induced electronic topological and structural transitions in black phosphorus: Experiments and Theory

Satyendra Nath Gupta, Anjali Singh, Koushik Pal +4

We report high pressure Raman experiments of Black phosphorus up to 24 GPa. The line widths of first order Raman modes A${}_g^1$, B${}_{2g}$ and A${}_g^2$ of the orthorhombic phase show…