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Pressure prods an elusive superconductor to emerge at last

The superconducting transition with Tc ∼210 K was observed in the electrical measurement for cell_1 at 190 GPa.

The wait is over: scientists have synthesized a superconducting crystal in which a cage of hydrogen atoms (small spheres; artist’s impression) surrounds a calcium atom (larger sphere). Credit: Ma, L. et al. Phys. Rev. Lett.

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Nature 605, 10 (2022)



  1. Ma, L. et al. Phys. Rev. Lett. 128, 167001 (2022).

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  2. Wang, H., Tse, J. S., Tanaka, K., Iitaka, T. & Ma, Y. Proc. Natl Acad. Sci. USA 109, 6463–6466 (2012).

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