A Four-Nanometre Sweet Spot Lets Scientists Reprogram How Metals Handle Electricity
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Ruthenium dioxide is not a material that makes headlines. A grey, conductive oxide used mainly as an electrode coating in industrial electrolysis cells, it’s the kind of workhorse compound that materials scientists know well and the rest of us never think about. Yet in a basement laboratory at the University of Minnesota, a thin film of this unremarkable metal oxide has just done something that should not, strictly speaking, be possible: it developed an electric polarisation.
Polarisation,
Polarisation,
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