Space-Separated Fermi–Bose Mixtures in SC Bismuth Oxides (BaKBiO)

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发表日期：

2024年

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Maxim Yu. Kagan,
Kliment I. Kugel,
Alexander L. Rakhmanov,
Artem O. Sboychakov

摘要

We discuss the superconducting and normal properties in the space-separated Fermi–Bose mixture of paired (bosonic) and normal (fermionic) BiO \(_6\) octahedral clusters in bismuth oxides (BaKBiO \(_3\) ). Note that superconductivity and the long-range order in this system is established by the tunneling of the local preformed pairs from one bosonic cluster to the neighboring one via the insulating fermionic barrier.