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Article

Excitonic insulator to superconductor phase transition in ultra-compressed helium

Helium, the second most abundant element in the universe, exhibits an extremely large electronic band gap of about 20 eV at ambient pressures. While the metallization pressure of helium has been accurately det...

Cong Liu, Ion Errea, Chi Ding, Chris Pickard, Lewis J. Conway… in Nature Communications (2023)