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Discovery of Superconductivity in (Ba,K)SbO_3
[article]
2021
arXiv
pre-print
Superconducting bismuthates (Ba,K)BiO_3 (BKBO) constitute an interesting class of superconductors in that superconductivity with a remarkably high T_c of 30 K arises in proximity to charge density wave (CDW) order. Prior understanding on the driving mechanism of the CDW and superconductivity emphasizes the role of either bismuth (negative U model) or oxygen ions (ligand hole model). While holes in BKBO presumably reside on oxygen owing to their negative charge transfer energy, so far there has
arXiv:2107.06596v1
fatcat:cv3pn2i6wzgxfmzfvcp4lmnxfy