Solar Cell Byproduct Could Beam Data Through Chips at the Speed of Light
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There’s a mineral called bustamentite that almost nobody studies. It forms in flat hexagonal plates, grows readily in warm water, and turns up as an unwanted contaminant in perovskite solar cells. For decades it sat at the margins of materials science, useful mostly as a precursor for more fashionable compounds. Then a group of physicists decided to look at it very carefully in the terahertz range, and found something that had been hiding in plain sight since the 1970s: bustamentite, bette
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