27 citations · 69 across the 11 of their papers we have counts for
11 papers
Nonreciprocal Acoustic and Optical Phonon Dispersion Mediated by Berry Curvature in Chiral Weyl Semimetals
Sanghita Sengupta
We investigate the phonon magnetochiral effect (PMCE) in chiral Weyl semimetals by deriving the nonreciprocal dispersion relations of both acoustic and non-polar optical phonons in…
Hyperfine interactions in open-shell planar -carbon nanostructures
Sanghita Sengupta, Thomas Frederiksen, Geza Giedke
We investigate hyperfine interaction (HFI) using density-functional theory for several open-shell planar -carbon nanostructures displaying magnetism. Our prototype struct…
Reply to "Comment on `Theory of Phonon-Assisted Adsorption in Graphene: Many-Body Infrared Dynamics' "
Sanghita Sengupta
Based on a new self-energy for atom-phonon interaction, preceding Comment argues about the insufficiency of the mathematical techniques within the Independent Boson Model (IBM) to…
Phonon magnetochiral effect of band-geometric origin in Weyl semimetals
Sanghita Sengupta, M. Nabil Y. Lhachemi, Ion Garate
The phonon magnetochiral effect consists of a nonreciprocity in the velocity or attenuation of acoustic waves when they propagate parallel and antiparallel to an external magnetic…
Anomalous Transition Magnetic Moments in two-dimensional Dirac Materials
Sanghita Sengupta, Madalina I. Furis, Oleg P. Sushkov +1
We show that the magnetic response of atomically thin materials with Dirac spectrum and spin-orbit interactions can exhibit strong dependence on electron-electron interactions. Whi…
Theory of Phonon-Assisted Adsorption in Graphene: Many-Body Infrared Dynamics
Sanghita Sengupta
We devise a theory of adsorption of low-energy atoms on suspended graphene membranes maintained at 10 K based on a model of atom-acoustic phonon interactions. Our primary technique…