61 citations · 318 across the 13 of their papers we have counts for
7 papers · 1 filter
Giant effective magnetic moments of chiral phonons from orbit-lattice coupling
Swati Chaudhary, Dominik M. Juraschek, Martin Rodriguez-Vega +1
Circularly polarized lattice vibrations carry angular momentum and lead to magnetic responses in applied magnetic fields or when resonantly driven with ultrashort laser pulses. Rec…
Flat bands and multi-state memory devices from chiral domain wall superlattices in magnetic Weyl semimetals
Vivian Rogers, Swati Chaudhary, Richard Nguyen +1
We propose a novel analog memory device utilizing the gigantic magnetic Weyl semimetal (MWSM) domain wall (DW) magnetoresistance. We predict that the nucleation of domain walls bet…
Photogalvanic response in multi-Weyl semimetals
Arpit Raj, Swati Chaudhary, Gregory A. Fiete
We investigate the dependence of the photogalvanic response of a multi-Weyl semimetal on its topological charge, tilt, and chemical potential. We derive analytical expressions for…
Chiral Phonons with Giant Magnetic Moments in a Topological Crystalline Insulator
Felix G. G. Hernandez, Andrey Baydin, Swati Chaudhary +10
We have studied the magnetic response of transverse optical phonons in PbSnTe films. Polarization-dependent terahertz magnetospectroscopy measurements revealed Zeeman…
Shift-current response as a probe of quantum geometry and electron-electron interactions in twisted bilayer graphene
Swati Chaudhary, Cyprian Lewandowski, Gil Refael
Moiré materials, and in particular twisted bilayer graphene (TBG), exhibit a range of fascinating phenomena, that emerge from the interplay of band topology and interactions. We sh…
Fermionic Chern insulator from twisted light with linear polarization
Utso Bhattacharya, Swati Chaudhary, Tobias Grass +3
The breaking of time-reversal symmetry is a crucial ingredient to topological bands. It can occur intrisically in materials with magnetic order, or be induced by external fields, s…
Phonon-induced Floquet second-order topological phases protected by space-time symmetries
Swati Chaudhary, Arbel Haim, Yang Peng +1
The co-existence of spatial and non-spatial symmetries together with appropriate commutation/anticommutation relations between them can give rise to static higher-order topological…