Giant non-linear anomalous Hall effect in three-dimensional T<sub>d </sub>-MoTe<sub>2</sub>

While the anomalous Hall effect can manifest even without an external magnetic field, time reversal symmetry is nonetheless still broken by the internal magnetization of the sample. Recently, it has been shown that certain materials without an inversion center allow for a nonlinear type of anomalous Hall effect whilst retaining time reversal symmetry. Here, the application of a harmonic longitudinal current or voltage generates a second harmonic component in the transverse direction. The effect may arise from either Berry curvature properties intrinsic to the material’s band structure or through various asymmetric scattering mechanisms. In this talk, I will be presenting our observation of an extremely large c-axis nonlinear anomalous Hall effect in the non-centrosymmetric Td phase of MoTe2 without intrinsic magnetic order, whose strength obeys a universal scaling with sample conductivity.

About APS

The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.

Headquarters 1 Physics Ellipse, College Park, MD 20740-3844 (301) 209-3200
Editorial Office 100 Motor Pkwy, Suite 110, Hauppauge, NY 11788 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700

Bulletin of the American Physical Society

APS March Meeting 2021

Volume 66, Number 1

Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA

Session M57: 2D Materials: Metals, Superconductors, and Correlated Materials - 2

Abstract: M57.00002 : Giant non-linear anomalous Hall effect in three-dimensional Td -MoTe2

Presenter:

Authors:

Follow Us

Engage

My APS

Information for

About APS

Abstract: M57.00002 : Giant non-linear anomalous Hall effect in three-dimensional T_d-MoTe₂