Compare · Superconductors
YBa2Cu3O7−δ (YBCO) vs Nb3Ge
RANKED BY CRITICAL TEMPERATURE TC AT AMBIENT PRESSURE (KELVIN)
#4 VS #7
CHECKED 06 SEPT 2026
Side by side
Verdict
YBa2Cu3O7−δ (YBCO) ranks #4 of 8 on Critical temperature Tc at ambient pressure (kelvin) (93 K); Nb3Ge ranks #7 (23.2 K).
Rank 04 of 8 · leads
Critical temperature Tc at ambient pressure (kelvin)
93 K
MakerWu / Chu group
Date1987
Verified04 Sept 2026
Evidence
First superconductor above liquid-nitrogen temperature. Widely replicated ambient-pressure Tc ≈ 93 K for optimally doped YBCO. Cited here as the canonical 90 K-class cuprate against which Hg-1223 is compared in the 2025 npj Quantum Materials Hg-1223 paper.Rank 07 of 8
Critical temperature Tc at ambient pressure (kelvin)
23.2 K
MakerGavaler / Westinghouse
Date1973
Verified04 Sept 2026
Evidence
Gavaler, Appl. Phys. Lett. 23, 480 (1973): sputtered Nb3Ge films with an onset near 23 K; subsequent work locked the ambient-pressure A15 record at 23.2 K. Held the record from 1973 until the cuprates. Replicated A15 intermetallic.Try another pair
Source Peer-reviewed papers: Nature 365, 323 (1993); Phys. Rev. Lett. 60, 2539 (1988); Jpn. J. Appl. Phys. 27, L209 (1988); Chin. Phys. Lett. 25,…
Last checked 06 Sept 2026