This “quantum” material fooled scientists and revealed something new

A mysterious magnetic material once thought to host an exotic “quantum spin liquid” has turned out to be something entirely different—and possibly just as intriguing. Scientists studying cerium magnesium hexalluminate found it showed the hallmark signs of this elusive quantum state, like a lack of magnetic order and a spread of energy states. But after closer inspection using neutron experiments, they discovered the behavior came from a delicate tug-of-war between two opposing magnetic forces.

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