Topology and topology-induced transport properties in quantum materials

Seminar

QUEST Center event

No

Speaker

Binghai Yan - Department of Condensed Matter Physics, Weizmann Institute of Science

Date

10/11/2022 - 13:30 - 12:30Add to Calendar 2022-11-10 12:30:00 2022-11-10 13:30:00 Topology and topology-induced transport properties in quantum materials Topological quantum materials have been extensively studied in recent years. After introducing the band structure topology and related materials, I will talk about novel electric and optical phenomena emerging in quantum materials caused by topology. For example, Weyl semimetals can exhibit anomalous Hall effect (AHE) due to the monopole-like Berry curvature and also an exotic nonlinear AHE due to the Berry curvature dipole. Further, we found that magnetic quantum materials exhibit exotic optical responses, for instance, a giant photocurrent caused by the quantum geometry beyond Berry phase. Conference room on the 0th floor of Resnick building Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public

Place

Conference room on the 0th floor of Resnick building

Abstract

Topological quantum materials have been extensively studied in recent years. After introducing the band structure topology and related materials, I will talk about novel electric and optical phenomena emerging in quantum materials caused by topology. For example, Weyl semimetals can exhibit anomalous Hall effect (AHE) due to the monopole-like Berry curvature and also an exotic nonlinear AHE due to the Berry curvature dipole. Further, we found that magnetic quantum materials exhibit exotic optical responses, for instance, a giant photocurrent caused by the quantum geometry beyond Berry phase.