159 citations · 867 across the 20 of their papers we have counts for
20 papers
Quantum Geometry Induced Third Order Nonlinear Transport Responses
Debottam Mandal, Sanjay Sarkar, Kamal Das +1
Nonlinear transport phenomena offer an exciting probe into the band geometry and symmetry properties of a system. While most studies on nonlinear transport have looked at second-or…
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…
Chiral anomalies in 3D spin-orbit coupled metals: electrical, thermal, and gravitational anomaly
Sunit Das, Kamal Das, Amit Agarwal
The discovery of a chiral anomaly in Weyl semimetals, the non-conservation of chiral charge and energy across two opposite chirality Weyl nodes, has sparked immense interest in und…
Observation of time-reversal symmetric Hall effect in graphene-WSe2 heterostructures at room temperature
Priya Tiwari, Divya Sahani, Atasi Chakraborty +5
In this letter, we provide experimental evidence of the time-reversal symmetric Hall effect in a mesoscopic system, namely high-mobility graphene/WSe heterostructures. This lin…
Quantum Kinetic Theory of Nonlinear Optical Currents: Finite Fermi surface and Fermi sea contributions
Pankaj Bhalla, Kamal Das, Amit Agarwal +1
The quantum kinetic framework provides a versatile method for investigating the dynamical optical and transport currents of crystalline solids. In this paper, starting from the den…
Quantum kinetic theory of nonlinear thermal current
Harsh Varshney, Kamal Das, Pankaj Bhalla +1
We investigate the second-order nonlinear electronic thermal transport induced by temperature gradient. We develop the quantum kinetic theory framework to describe thermal transpor…