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Science· 2017Q1

Quantized electric multipole insulators

Wladimir A. Benalcazar, B. Andrei Bernevig, Taylor L. Hughes

Short summary

Researchers introduce a new class of topological insulators where quadrupole and octupole moments are quantized, leading to protected corner states with fractional charge.

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Field: Atomic and Molecular Physics, and Optics

Atomic and Molecular Physics, and OpticsPhysics and Astronomy