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Superconductivity

Superconductivity

Superconductor reveals new state of matter involving pairs of Cooper pairs

03 Nov 2021
Superconductor material
New state of matter: The team observed electron quadruplets in this iron-based superconductor material, seen mounted for experimental measurements. (Courtesy: Vadim Grinenko, Federico Caglieris)
Cool a material below its superconducting transition temperature and you’d expect it to start

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 Edwin Cartlidge is a science writer based in Rome
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