Topological critical materials of ternary compounds

Shengshan Qin, Congcong Le, Xianxin Wu, Jiangping Hu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We review topological properties of two series of ternary compounds AMgBi (A = K, RB, Cs) and ABC with a hexagonal ZrBeSi type structure. The first series of materials AMgBi are predicted to be topological critical Dirac semimetals. The second series of ternary compounds, such as KZnP, BaAgAs, NaAuTe and KHgSb, can be used to realize various topological insulating states and semimetal states. The states are highly tunable as the realization of these topological states depends on the competition between several energy scales, including the energy of atomic orbitals, the energy of crystal splitting, the energy difference between bonding and antibonding states, and the strength of spin-orbit coupling. The exotic surface states in these series of compounds are predicted and are closely related to their unique crystal structures.

Original languageEnglish
Pages (from-to)218-224
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume128
DOIs
Publication statusPublished - May 2019
Externally publishedYes

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