Compare · Superconductors
Tl2Ba2Ca2Cu3O10 (Tl-2223) vs Bi2Sr2Ca2Cu3O10+δ (Bi-2223)
RANKED BY CRITICAL TEMPERATURE TC AT AMBIENT PRESSURE (KELVIN)
#2 VS #3
CHECKED 06 SEPT 2026
Side by side
Verdict
Tl2Ba2Ca2Cu3O10 (Tl-2223) ranks #2 of 8 on Critical temperature Tc at ambient pressure (kelvin) (125 K); Bi2Sr2Ca2Cu3O10+δ (Bi-2223) ranks #3 (110 K).
Rank 02 of 8 · leads
Critical temperature Tc at ambient pressure (kelvin)
125 K
MakerParkin / IBM Almaden
Date1988
Verified04 Sept 2026
Evidence
Parkin, Lee, Engler, Nazzal, Huang, Gorman, Savoy, Beyers, Phys. Rev. Lett. 60, 2539 (1988): "Bulk superconductivity is reported in Tl2Ca2Ba2Cu3Ox with a transition to zero resistance at ≃125 K, the highest transition temperature (Tc) yet found." Widely replicated ambient-pressure cuprate; Tc 118–125 K depending on intergrowths.Rank 03 of 8
Critical temperature Tc at ambient pressure (kelvin)
110 K
MakerMaeda group / NRIM
Date1988
Verified04 Sept 2026
Evidence
Maeda, Tanaka, Fukutomi, Asano, Jpn. J. Appl. Phys. 27, L209 (1988): new Bi-Sr-Ca-Cu-O compound with a superconducting onset near 120 K and a bulk 110 K phase later identified as Bi-2223. The 110 K figure is the long-replicated ambient-pressure Tc of the 2223 phase used in silver-sheathed tapes.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