61 citations · 318 across the 13 of their papers we have counts for
14 papers
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…
Observation of Colossal Terahertz Magnetoresistance and Magnetocapacitance in a Perovskite Manganite
Fuyang Tay, Swati Chaudhary, Jiaming He +5
We have studied the terahertz response of a bulk single crystal of LaSrMnO at around its Curie temperature, observing large changes in the real and imaginar…
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…
Light driven magnetic transitions in transition metal dichalcogenide heterobilayers
Michael Vogl, Swati Chaudhary, Gregory A. Fiete
Motivated by the recent excitement around the physics of twisted transition metal dichalcogenide (TMD) multilayer systems, we study strongly correlated phases of TMD heterobilayers…
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…
Anomalous exciton transport in response to a uniform, in-plane electric field
Swati Chaudhary, Christina Knapp, Gil Refael
Excitons are neutral objects, that, naively, should have no response to a uniform, electric field. Could the Berry curvature of the underlying electronic bands alter this conclusio…
Controlling ligand-mediated exchange interactions in periodically driven magnetic materials
Swati Chaudhary, Alon Ron, David Hsieh +1
A periodic drive could alter the effective exchange interactions in magnetic materials. Here, we explore how exchange pathways affect the effective interactions of periodically dri…
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…
Orbital Floquet Engineering of Exchange Interactions in Magnetic Materials
Swati Chaudhary, David Hsieh, Gil Refael
We present a new scheme to control the spin exchange interactions between two magnetic ions by manipulating the orbital degrees of freedom using a periodic drive. We discuss two di…
Berry-electrodynamics - Anomalous drift and pumping from time-dependent Berry connection
Swati Chaudhary, Manuel Endres, Gil Refael
The Berry curvature of a Bloch band can be interpreted as a local magnetic field in reciprocal space. This analogy can be extended by defining an electric field analog in reciproca…
Angular Lens
Rishabh Sahu, Swati Chaudhary, Kedar Khare +3
We propose a single phase-only optical element that transforms different orbital angular momentum (OAM) modes into localized spots at separated angular positions on a transverse pl…