Hopping Electrons Toggle High-Temperature Superconductivity (IMAGE)
Caption
Computer simulations at SLAC and Stanford suggest a way to turn superconductivity on and off in copper-based materials called cuprates: Tweak the chemistry of the materials so electrons hop from atom to atom in a particular pattern -- as if hopping to the atom diagonally across the street rather than to the one next door. This grid of simulated atoms illustrates the idea. Copper atoms are in orange, oxygen atoms are in red and electrons are in blue.
Credit
Greg Stewart/SLAC National Accelerator Laboratory
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