122 citations · 214 across the 4 of their papers we have counts for
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Enhanced Raman and photoluminescence response in monolayer MoS due to laser healing of defects
Achintya Bera, D V S Muthu, A K Sood
Bound quasiparticles, negatively charged trions and neutral excitons, are associated with the direct optical transitions at the K-points of the Brillouin zone for monolayer MoS…
Pressure-dependent Semiconductor to Semimetal and Lifshitz transitions in 2H-MoTe: Raman and First-principles studies
Achintya Bera, Anjali Singh, D V S Muthu +2
High pressure Raman spectroscopy of bulk 2H-MoTe upto 29 GPa is shown to reveal two phase transitions (at 6 and 16.5 GPa), which are analyzed using first-principl…
Pressure-induced phase transition in BiSe at 3 GPa: electronic topological transition or not?
Achintya Bera, Koushik Pal, D V S Muthu +2
In recent years, a low pressure transition around P 3 GPa exhibited by the AB-type 3D topological insulators is attributed to an electronic topological transition (E…
Sharp Raman Anomalies and Broken Adiabaticity at a Pressure Induced Transition from Band to Topological Insulator in Sb2Se3
Achintya Bera, Koushik Pal, D. V. S. Muthu +4
The nontrivial electronic topology of a topological insulator is thus far known to display signatures in a robust metallic state at the surface. Here, we establish vibrational anom…