3 papers
cond-mat.str-el2026
Extraordinary Lifetime Enhancement of Coherent Phonon-Amplitude Modes in the Excitonic Insulator Phase of Ta2Pd3Te5
Anjan Kumar N M, Shuhan Wang, Snehashish Chatterjee +9
The excitonic insulator (EI) is an electronic phase of condensed excitons. However, in many prototypical materials the presence of a concurrent structural transition complicates th…
cond-mat.str-el2026
Dynamics of Charge-Density-Wave puddles in 2-NbSe
Shreya Kumbhakar, Marina Esposito, Anjan Kumar N M +15
Electronic phases in quantum materials are often governed by nanoscale inhomogeneity, where local order develops within spatially confined regions or puddles. A prominent example i…
cond-mat.mtrl-sci2025
Ultrafast dynamics of carriers, coherent acoustic phonons and strain pulses in BiSbTe1.5Se1.5 topological insulator thin films
Anupama Chauhan, Sidhanta Sahu, Poulami Ghosh +6
We Investigate the ultrafast carrier, coherent acoustic phonons (CAPs), and acoustic strain pulse dynamics in topological insulator BiSbTe1.5Se1.5 (BSTS) thin films of varying thic…