Crystal Structure and Chemistry of Topological Insulators
Topological surface states, a new kind of electronic state of matter, have recently been observed on the cleaved surfaces of crystals of a handful of small band gap semiconductors. The underlying chemical factors that enable these states are crystal symmetry, the presence of strong spin-orbit coupling, and an inversion of the energies of the bulk electronic states that normally contribute to the valence and conduction bands. The goals of this review are to briefly introduce the physics of topological insulators to a chemical audience and to describe the chemistry, defect chemistry, and crystal structures of the compounds in this emergent field.
R. J. Cava et al., "Crystal Structure and Chemistry of Topological Insulators," Journal of Materials Chemistry C, vol. 1, no. 19, pp. 3176-3189, Royal Society of Chemistry, May 2013.
The definitive version is available at http://dx.doi.org/10.1039/c3tc30186a
Keywords and Phrases
Band-gap Semiconductors; Bulk Electronic State; Chemical Factors; Cleaved Surfaces; Crystal Structure And Chemistry; Defect Chemistry; Spin-orbit Couplings; Topological Insulators; Electric Insulators; Electronic States; Chemical Compounds
International Standard Serial Number (ISSN)
Article - Journal
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