5 papers
Contrasting anisotropic electron-phonon-spin coupling in FeGeTe and FeGeTe: A helicity-resolved Raman study
Smrutiranjan Mekap, Jyoti Saini, Andrzej Ptok +4
Two-dimensional van der Waals ferromagnets FeGeTe (F3GT) and FeGeTe (F5GT) exhibit pronounced magneto-optical responses, which open promising platforms for investi…
Fermionic Band Dispersions and an Evidence of Cooperon Excitations in a Spin- Trimer Chain
P. Srikanth Patnaik, Snehasish Sen, A. K. Bera +3
We obtain the solution of the Hamiltonian of an antiferromagnetically coupled spin- trimer chain in terms of three bands that host three different species of fermions. While t…
Anisotropic electron-phonon coupling and chiral phonons in van der Waals room temperature ferromagnet FeGeTe
Smrutiranjan Mekap, Andrzej Ptok, Jyoti Saini +3
The layered van der Waals FeGeTe (F5GT) compound exhibits room-temperature ferromagnetism, making it a promising candidate for technological applications. In our study, com…
Non-trivial phonon dynamics and significant electron-phonon coupling of the high frequency modes in a Dirac semimetal
Debasmita Swain, Akash Dey, Anushree Roy +2
Using finite temperature Raman spectroscopy, we investigate the electron-phonon interactions (EPI) and phonon-phonon scattering dynamics in the Dirac semimetal Cd3As2 in different…
Evidences for local non-centrosymmetricity and strong phonon anomaly in EuCu2As2: A Raman spectroscopy and lattice dynamics study
Debasmita Swain, Mainak Dey Sarkar, Andrzej Ptok +3
Phonon modes and their association with the electronic states have been investigated for the metallic EuCuAs system. In this work, we present the Raman spectra of this…