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The MIT team used a scanning tunneling microscope (STM) to study the electrical activity of a superlattice material composed of two different compounds of the elements strontium, lanthanum and cobalt. At bottom, a diagram of how they "sliced" the material on an angle to expose wider bands of the thin layers of material. The center two images show the resulting measurements of the surface topograph...

Unleashing oxygen

‘Superlattice’ structure could give a huge boost to oxygen reaction in fuel cells, increasing their power potential.

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