Original paper

Trapped fractional charges at bulk defects in topological insulators

Nature64.80
Volume: 589, Issue: 7842, Pages: 376 - 380
Published: Jan 20, 2021
Abstract
Topological crystalline insulators (TCIs) can exhibit unusual, quantized electric phenomena such as fractional electric polarization and boundary-localized fractional charge1-6. This quantized fractional charge is the generic observable for identification of TCIs that lack clear spectral features5-7, including ones with higher-order topology8-11. It has been predicted that fractional charges can also manifest where crystallographic defects...
Paper Details
Title
Trapped fractional charges at bulk defects in topological insulators
Published Date
Jan 20, 2021
Journal
Volume
589
Issue
7842
Pages
376 - 380
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