Zack Geballe spent months screwing together pairs of polished diamonds at the Carnegie Institution for Science’s Geophysical Laboratory. Theory predicted that squeezed between the diamonds’ tips could be one of the most miraculous substances of modern physics—a material that, at near room temperature, could transport electricity without losing power. He just needed to get the samples to Argonne National Lab outside Chicago to heat them up with laser pulses.
When Argonne beam line scientist Yue Meng turned the lasers on, all four diamonds cracked in half.
“It was a total catastrophe,” Geballe told me while I was visiting him at the Geophysical Laboratory in Washington, DC, this year.
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