New Physics-Inspired Proof Probes the Borders of Disorder

The mystery was this: In the 1950s, a physicist at Bell Labs named George Feher was injecting silicon with tiny quantities of other elements, such as phosphorus or arsenic. When he put a little in, the electrons would move freely through the resulting material. But as he added more, the material’s internal structure became more random, impeding the electrons’ motion.

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