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Condensed-matter physics

Hidden is more

Physicists have puzzled over a hidden electronic order in a uranium-based material for decades. A new theory attributes it to not just a single but a double breaking of time-reversal symmetry. See Article p.621

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Figure 1: Magnetic orders.

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Correspondence to Qimiao Si.

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Si, Q. Hidden is more. Nature 493, 619–620 (2013). https://doi.org/10.1038/493619a

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