Organic topological insulators in organometallic lattices

Topological insulators are a recently discovered class of materials having insulating bulk electronic states but conducting boundary states distinguished by nontrivial topology. So far, several generations of topological insulators have been theoretically predicted and experimentally confirmed, all based on inorganic materials. Here, based on first-principles calculations, we predict a family of two-dimensional organic topological insulators made of organometallic lattices. Designed by assembling molecular building blocks of triphenyl-metal compounds with strong spin-orbit coupling into a hexagonal lattice, this new classes of organic topological insulators are shown to exhibit nontrivial topological edge states that are robust against significant lattice strain. We envision that organic topological insulators will greatly broaden the scientific and technological impact of topological insulators. Topological insulators are bulk insulators with conductive boundary states, and until now have been based only on inorganic materials. Wang et al.use first-principles calculations to predict a class of organic topological insulators based on organometallic lattices exhibiting robust topological edge states.

• Publication year

  2013

• Venue

  Nature Communications

• Publication date

  2013-02-12

• Fields of study

  Medicine, Materials Science, Physics

• Identifiers
  DOI 10.1038/ncomms2451arXiv 1304.5582PMID 23403572
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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