Catalogue of topological electronic materials

By Tiantian Zhang, Yi Jiang, Zhida Song, He Huang, Yuqing He, Z. Fang, H. Weng, Chen Fang. Nature, 2018

814 citations recorded by the source corpus.

Topological electronic materials such as bismuth selenide, tantalum arsenide and sodium bismuthide show unconventional linear response in the bulk, as well as anomalous gapless states at their boundaries. They are of both fundamental and applied interest, with the potential for use in high-performance electronics and quantum computing. But their detection has so far been hindered by the difficulty of calculating topological invariant properties (or topological nodes), which requires both experience with materials and expertise with advanced theoretical tools. Here we introduce an effective, efficient and fully automated algorithm that diagnoses the nontrivial band topology in a large fraction of nonmagnetic materials. Our algorithm is based on recently developed exhaustive mappings between the symmetry representations of occupied bands and topological invariants. We sweep through a total of 39,519 materials available in a crystal database, and find that as many as 8,056 of them are topologically nontrivial. All results are available and searchable in a database with an interactive user interface. Topological materials are thought to be scarce, but an algorithm that diagnoses nontrivial topology in nonmagnetic materials finds the opposite: more than 30 per cent of the 26,688 materials studied are topological.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/c906830e281844aeafb129ae00b594ddc685a207

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In Atomic and Molecular Physics, and Optics

In Condensed Matter Physics

In Materials Chemistry

Citations in the corpus

Symmetry and Topology in Non-Hermitian Physics (2018, background): “[218] T.”
Angle-resolved photoemission studies of quantum materials (2020, neutral): “…are not nearly as rare as one might expect: large-scale theoretical searches have predicted thousands of topological materials, estimating that up to 30% of materials in nature are topologically non-trivial, with ∼ 12% being TIs (Tang et al., 2019; Vergniory et al., 2019; Zhang et al., 2019c).”
Topological Semimetals from First Principles (2018, background): “Remarkably, a series of very recent works have employed this set of ideas to systematically search large material databases for previously unrecognized topological materials, both insulators and semimetals (167, 168, 169).”