AUTHOR=Li Meize , Liu Yahong , Du Lianlian , Zhou Xin , Song Kun , Ji Ruonan , Zhao Xiaopeng 

TITLE=Weyl Point and Nontrivial Surface States in a Helical Topological Material

JOURNAL=Frontiers in Materials

VOLUME=8

YEAR=2022

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2021.805862

DOI=10.3389/fmats.2021.805862

ISSN=2296-8016

ABSTRACT=<p>Topological material has been widely studied in recent years because of excellent physical properties. In this paper, a Weyl topological material composed of the double left-handed helixes is presented. It is demonstrated that the proposed structure possesses a two-dimensional complete topological nontrivial bandgap for a fixed k<sub>z</sub> in the microwave frequency, and the robust surface states are observed. This unique function provides a promising platform for the development of photonics and electromagnetics.</p>