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Topological matter

Topological matter

Chiral surface excitons spotted on topological insulator

05 Mar 2019
Light spiral
Spin orbits: spiralling electrons on the surface of bismuth selenide produce circularly-polarized light. (Courtesy: iStock/VikaSuh)
The first ever observations of chiral surface excitons have been made by Girsh Blumberg and colleagu

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Sam Jarman is a science writer based in the UK
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