34 citations · 119 across the 5 of their papers we have counts for
3 papers · 1 filter
Raman signatures of pressure induced electronic topological and structural transitions in Bi2Te3
Gopal K. Pradhan, Achintya Bera, Pradeep Kumar +2
We report Raman signatures of electronic topological transition (ETT) at 3.6 GPa and rhombohedral (α-Bi2Te3) to monoclinic (β-Bi2Te3) structural transition at ~ 8 GPa. At the onset…
Elastic and structural instability of cubic Sn3N4 and C3N4 under pressure
Gopal K. Pradhan, Anil Kumar, Umesh V. Waghmare +2
We use in-situ high pressure angle dispersive x-ray diffraction measurements to determine the equation of state of cubic tin nitride Sn3N4 under pressure up to about 26 GPa. While…
Pressure-induced phonon-freezing in the ZnBeSe alloy: a study via the percolation mesoscope
Gopal K. Pradhan, Chandrabhas Narayana, Olivier Pages +8
We use the 1-bond -> 2-phonon percolation doublet of zincblende alloys as a mesoscope for an unusual insight into their phonon behavior under pressure. We focus on (Zn,Be)Se and sh…