Electrons flowing in vortices Top: Schematic experimental layout showing samples of Au (a) and WTe2 (b) together with the device used to measure current flow. Bottom: Normalized current densities measured experimentally in c) Au and d) WTe2 showing laminar and vortical flows. (Courtesy: A Aharon)
An international team of physicists has observed electrons flowing in whirlpool-like patterns known
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Isabelle Dumé
is a contributing editor to Physics World