51 citations · 65 across the 5 of their papers we have counts for
5 papers
Extrinsic orbital Edelstein effect from asymmetric scattering
Sankar Sarkar, Koushik Ghorai, Amit Agarwal
The generation and manipulation of orbital angular momentum (OAM) by an external electric field constitute one of the central themes of orbitronics. In particular, the electrically…
Orbital-Splitter Current in Altermagnets
Koushik Ghorai, Sayan Sarkar, Amit Agarwal
In collinear altermagnets, the real-space rotational symmetry of opposite spin sublattices generates a large nonrelativistic spin-splitter current. Orbital transport in this settin…
Intrinsic Gyrotropic Magnetic Current of Orbital Origin
Koushik Ghorai, Sankar Sarkar, Amit Agarwal
In gyrotropic crystals, an oscillating magnetic field induces a charge response known as the gyrotropic magnetic current. While its conventional origin is attributed to magnetic fi…
Planar Hall Effect in Quasi-Two-Dimensional Materials
Koushik Ghorai, Sunit Das, Harsh Varshney +1
The planar Hall effect in 3D systems is an effective probe for their Berry curvature, topology, and electronic properties. However, the Berry curvature-induced conventional planar…
Nonlinear Valley Hall Effect
Kamal Das, Koushik Ghorai, Dimitrie Culcer +1
The valley Hall effect arises from valley contrasting Berry curvature and requires inversion symmetry breaking. Here, we propose a nonlinear mechanism to generate a valley Hall cur…