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High-temperature superconductivity

The secret of the hourglass

The finding that a cobalt oxide insulator's magnetism is similar to that of cuprate superconductors lends support to the popular but contentious idea that stripe-like electronic order is present in the latter materials. See Letter p.341

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Figure 1: The hourglass magnetic spectrum.


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Correspondence to Jan Zaanen.

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Zaanen, J. The secret of the hourglass. Nature 471, 314–316 (2011).

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