Topological materials and topological responses

QUEST Center event
No
Speaker
(Binghai Yan(Weizman
Date
17/05/2018 - 16:30 - 15:30Add to Calendar 2018-05-17 15:30:00 2018-05-17 16:30:00 Topological materials and topological responses The past decade has witnessed intensive research aimed at investigating the role of band-structure topology and discovering topological materials. The topology provides a new aspect to understand the band-structure and reveal exotic phenomena, such as topological surface states. In this talk, I will focus on recently-discovered Weyl semimetals. Besides the unique Fermi arc surface states, I will introduce the transport and optical phenomena in realistic materials, which include the linear response (e.g. anomalous Hall and spin Hall effects) and nonlinear response (second-harmonic generation and dc photocurrents) induced by the Weyl band structure. Refs. Annu. Rev. Condens. Matter Phys. 8, 337-354 (2017); Nature Physics 11, 728 (2015); arXiv:1708.08589, and arXiv:1803.00562.   Resnick (#209) - room 210 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Resnick (#209) - room 210
Abstract

The past decade has witnessed intensive research aimed at investigating the role of band-structure topology and discovering topological materials. The topology provides a new aspect to understand the band-structure and reveal exotic phenomena, such as topological surface states. In this talk, I will focus on recently-discovered Weyl semimetals. Besides the unique Fermi arc surface states, I will introduce the transport and optical phenomena in realistic materials, which include the linear response (e.g. anomalous Hall and spin Hall effects) and nonlinear response (second-harmonic generation and dc photocurrents) induced by the Weyl band structure.

Refs. Annu. Rev. Condens. Matter Phys. 8, 337-354 (2017); Nature Physics 11, 728 (2015); arXiv:1708.08589, and arXiv:1803.00562.

 

Last Updated Date : 10/05/2018