Bismuth dihydride formed at 140-211 GPa superconducts up to ~70 K with unusually low upper critical fields (12-16 T), placing it among 'soft' hydride superconductors.
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Soft superconductivity in covalent bismuth dihydride BiH$_2$ under extreme conditions
Bismuth dihydride formed at 140-211 GPa superconducts up to ~70 K with unusually low upper critical fields (12-16 T), placing it among 'soft' hydride superconductors.