Definition of superconductivity
The abrupt and large increase in electrical conductivity exhibited by some materials at very low temperatures.
Ref: ASM, 1
Superconducting compounds are scarcer, and only the mineral covellite, CuS, shows superconductivity in samples that occur naturally, a discovery that occurred many decades after superconductivity was first detected in laboratory-grown CuS crystals. Only three other minerals where synthetic analogs are superconductors: parkerite, Ni3Bi2S2, with superconducting transition temperature, Tc ≈ 0.7 , and two isostructural compounds, miassite, Rh17S15 (Tc = 5.8 K), and palladseite, Pd17Se15 (Tc = 2.2 K).
Ref: ASM, 1
Superconducting compounds are scarcer, and only the mineral covellite, CuS, shows superconductivity in samples that occur naturally, a discovery that occurred many decades after superconductivity was first detected in laboratory-grown CuS crystals. Only three other minerals where synthetic analogs are superconductors: parkerite, Ni3Bi2S2, with superconducting transition temperature, Tc ≈ 0.7 , and two isostructural compounds, miassite, Rh17S15 (Tc = 5.8 K), and palladseite, Pd17Se15 (Tc = 2.2 K).
References
[1]Kim, Hyunsoo, Tanatar, Makariy A., Kończykowski, Marcin, Grasset, Romain, Kaluarachchi, Udhara S., Teknowijoyo, Serafim, Cho, Kyuil, Sapkota, Aashish, Wilde, John M., Krogstad, Matthew J., Bud’ko, Sergey L., Brydon, Philip M. R., Canfield, Paul C., Prozorov, Ruslan (2024) Nodal superconductivity in miassite Rh17S15. Communications Materials, 5 (1) 17 doi:10.1038/s43246-024-00456-w
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