Angle-resolved Transport and Nonlinear Hall effect in Bernal Bilayer graphene (ONLINE)
APA
(2024). Angle-resolved Transport and Nonlinear Hall effect in Bernal Bilayer graphene (ONLINE). SciVideos. https://youtu.be/7dzFVrf2_Xs
MLA
Angle-resolved Transport and Nonlinear Hall effect in Bernal Bilayer graphene (ONLINE). SciVideos, Jul. 23, 2024, https://youtu.be/7dzFVrf2_Xs
BibTex
@misc{ scivideos_ICTS:29174,
doi = {},
url = {https://youtu.be/7dzFVrf2_Xs},
author = {},
keywords = {},
language = {en},
title = {Angle-resolved Transport and Nonlinear Hall effect in Bernal Bilayer graphene (ONLINE)},
publisher = {},
year = {2024},
month = {jul},
note = {ICTS:29174 see, \url{https://scivideos.org/icts-tifr/29174}}
}
Abstract
Hall effect is one of the most studied phenomena in condensed matter physics. In its linear form, it relates the electrical potential difference perpendicular to the electrical current via a direct proportionality. Beyond the linear response regime, a recent theoretical proposal pointed to a novel form of Hall effect induced by a Berry curvature dipole, where the electric current in the nonlinear regime is always orthogonal to the local electric field and. The proposed nonlinear Hall effect unlocks an outstanding experimental challenge to properly probe, analyze, and understand the mechanism underlying transport response in the nonlinear regime. In this talk, we report a new scheme to measure and analyze nonlinear transport response from Bernal bilayer graphene. Based on angle-resolved transport measurement, we extract the nonlinear conductivity tensor and identify a non-zero component that corresponds to the nonlinear Hall effect. By examining the evolution of the conductivity tensor ...