拓扑(电路)
拓扑序
拓扑简并
量子力学
理论物理学
作者
Jiewen Xiao,Binghai Yan
标识
DOI:10.1038/s42254-021-00292-8
摘要
Discoveries of topological states and topological materials have reshaped our understanding of physics and materials over the past 15 years. First-principles calculations have had an important role in bridging the theory of topology and experiments by predicting realistic topological materials. In this Review, we offer an overview of the first-principles methodology on topological quantum materials. First, we unify different concepts of topological states in the same band inversion scenario. We then discuss the topology using first-principles band structures and newly established topological materials databases. We stress challenges in characterizing symmetry-independent Weyl semimetals and calculating topological surface states, closing with an outlook on the exciting transport and optical phenomena induced by the topology. First-principles calculations have been very successful in predicting topological quantum materials. This Technical Review covers topological band theory and provides a guide to the study of topological materials with first-principles methods.
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