DOAJ Open Access 2023

Robust three-dimensional type-II Dirac semimetal state in SrAgBi

Zhixiang Hu Junze Deng Hang Li Michael O. Ogunbunmi Xiao Tong +9 lainnya

Abstrak

Abstract Topological semimetals such as Dirac, Weyl or nodal line semimetals are widely studied for their peculiar properties including high Fermi velocities, small effective masses and high magnetoresistance. When the Dirac cone is tilted, exotic phenomena could emerge whereas materials hosting such states are promising for photonics and plasmonics applications. Here we present evidence that SrAgBi is a spin-orbit coupling-induced type-II three-dimensional Dirac semimetal featuring tilted Dirac cone at the Fermi energy. Near charge compensation and Fermi surface characteristics are not much perturbed by 7% of vacancy defects on the Ag atomic site, suggesting that SrAgBi could be a material of interest for observation of robust optical and spintronic topological quantum phenomena.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Atomic physics. Constitution and properties of matter

Penulis (14)

Zhixiang Hu

Junze Deng

Hang Li

Michael O. Ogunbunmi

Xiao Tong

Qi Wang

David Graf

Wojciech Radoslaw Pudełko

Yu Liu

Hechang Lei

Svilen Bobev

Milan Radovic

Zhijun Wang

Cedomir Petrovic

Format Sitasi

APA MLA BibTeX

Hu, Z., Deng, J., Li, H., Ogunbunmi, M.O., Tong, X., Wang, Q. et al. (2023). Robust three-dimensional type-II Dirac semimetal state in SrAgBi. https://doi.org/10.1038/s41535-023-00549-8

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1038/s41535-023-00549-8
Akses: Open Access ✓