Giant non-linear anomalous Hall effect in three-dimensional T<sub>d </sub>-MoTe<sub>2</sub>
ORAL
Abstract
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.
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Presenters
Archana Tiwari
University of Waterloo
Authors
Archana Tiwari
University of Waterloo
Fangchu Chen
University of Waterloo
Shazhou Zhong
University of Waterloo
Elizabeth Drueke
Physics, University of Michigan
University of Michigan
Physics Department, University of Michigan
Jahyun Koo
Weizmann Institute of Science
Physics, Weizmann institute of science
Austin R Kaczmarek
University of Michigan
Physics Department, University of Michigan
Cong Xiao
The University of Texas at Austin
Jingjing Gao
Institute of Solid State Physics, Chinese Academy of Sciences
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei
Xuan Luo
Institute of Solid State Physics, Chinese Academy of Sciences
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei
Qian Niu
The University of Texas at Austin
Yuping Sun
Institute of Solid State Physics, Chinese Academy of Sciences
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei
