STEM Talks 2017
Metals, insulators, and something new: The discovery of “topological insulators” and how they might change the world
Professor Michael Fuhrer
Scientists once believed there were two types of materials: metals which conduct electricity, and insulators which don’t. Recently they discovered a third: Topological insulators, with insulating interiors but conducting edges or surfaces, a discovery recognised by the 2016 Nobel Prize in Physics. Under the right conditions topological insulators can even conduct electricity perfectly, without resistance. New types of transistors based on topological insulators have the potential to significantly reduce the power used in computing and extend the advances of the Information Age well into the future.
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