3 papers
cond-mat.mes-hall2025
Hidden Magnon Berry Curvature drives Vertical Magnon Transport
Atul Rathor, Sahanawaj Akhtar, Arijit Haldar
We predict an in-plane, or hidden, Berry curvature (BC) for magnons in electrically insulating quasi-2D magnets and demonstrate that the hidden magnon Berry curvature (HMBC) gives…
cond-mat.mes-hall2024
Spin Injection Route to Magnon Berry Curvature Dipole
Atul Rathor, Saurav Kantha, Arijit Haldar
Berry curvature of Bloch bands arising in lattice systems can induce a Hall response even in the absence of topology due to the so-called Berry-curvature dipole (BCD). Such a respo…
math-ph2019
Resolution of SU(3) Outer Multiplicity Problem and the Invariant Group
Manu Mathur, Atul Rathor, T. P. Sreeraj
We resolve the SU(3) outer multiplicity problem by defining all possible invariant operators in terms of SU(3) Schwinger bosons. We show that the elementary in…