Aggregated per-compound records: Tc, pairing, structure phase, competing orders, and literature coverage. Filters combine with AND semantics.
| Formula | Family | Tc max (K) | Tc ambient | Pairing | Phase | Flags | arXiv year | Papers | Tier | Data |
|---|---|---|---|---|---|---|---|---|---|---|
| Sr1-xLaxCuO2 | Cuprate | 42.0 | 26.0 | d-wave | infinite_layer | ambientunconv | 2007 | 12 | T1 | 10/10 |
| (Li1-xFex)OHFeSe | Iron-based | 42.0 | 42.0 | — | — | ambientunconvCDW/SDW | 2014 | 12 | T1 | 8/10 |
| (Fe2As2)(Can+1(Sc,Ti)nOy) | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2010 | 1 | — | 8/10 |
| Lix(C6H15N)yFe1-zSe | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2020 | 1 | T1 | 8/10 |
| Li1-xFex(OH)Fe1-ySe | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2014 | 6 | T1 | 8/10 |
| NbH3 | Hydride | 42.0 | — | — | — | 2024 | 3 | T1 | 6/10 |
| Li(NH3)xFeSe | Iron-based | 42.0 | 42.0 | — | — | ambient | 2015 | 1 | — | 7/10 |
| (Li0.84Fe0.16)OHFeSe | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2018 | 3 | T1 | 8/10 |
| LiNH3FeSe | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2015 | 1 | T3 | 8/10 |
| CsB12 | Conventional | 42.0 | — | — | — | ambient | 2026 | 1 | T2 | 7/10 |
| PrFeAsO0.7 | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2009 | 2 | T1 | 8/10 |
| Lix(C8H19N)yFe1-zSe | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2020 | 1 | T1 | 8/10 |
| PrFeAsO0.85F0.15 | Iron-based | 42.0 | — | — | — | unconv | 2008 | 2 | T1 | 6/10 |
| La1.8Sr0.2CuO4 | Cuprate | 42.0 | 42.0 | d-wave | cuprate_214 | ambientunconv | 1987 | 31 | T1 | 10/10 |
| (Li1-xFeOD)FeSe | Iron-based | 42.0 | — | — | — | unconv | 2015 | 1 | T1 | 6/10 |
| (Li1-xFeOH)FeSe | Iron-based | 42.0 | — | — | — | unconv | 2015 | 1 | T1 | 6/10 |
| La2CuO4.12 | Cuprate | 42.0 | 42.0 | — | cuprate | ambientunconvCDW/SDW | 2000 | 1 | — | 9/10 |
| Gd1.2Ba1.8Cu3O7.03 | Cuprate | 42.0 | 42.0 | d-wave | YBCO | ambientunconv | 2003 | 1 | T1 | 10/10 |
| Ru0.7Sn0.3Sr2EuCu2O8 | Cuprate | 42.0 | 42.0 | d-wave | — | ambientunconv | 2007 | 1 | — | 9/10 |
| GdBa2(Cu0.94Fe0.06)3O9-δ | Cuprate | 42.0 | — | d-wave | — | unconv | 1987 | 1 | T1 | 7/10 |
| Gd1.4Ce0.6RuSr2Cu2O10-δ | Cuprate | 42.0 | 42.0 | d-wave | — | ambientunconvCDW/SDW | 1997 | 1 | T1 | 9/10 |
| Sr0.875La0.125CuO2 | Cuprate | 42.0 | 42.0 | d-wave | — | ambientunconv | 2007 | 1 | T1 | 9/10 |
| K0.75Fe1.75Se2 | Iron-based | 42.0 | 28.0 | — | — | ambientunconvCDW/SDW | 2011 | 2 | T1 | 8/10 |
| SmO0.85F0.15FeAs | Iron-based | 42.0 | — | — | — | unconv | 2008 | 2 | T1 | 6/10 |
| Sm0.85Th0.15FeAsO | Iron-based | 42.0 | — | — | — | ambientunconv | 2010 | 2 | T1 | 7/10 |
| Ca6(Sc0.4Ti0.6)5Fe2As2Oy | Iron-based | 42.0 | — | — | — | unconv | 2010 | 1 | T3 | 6/10 |
| Y0.9Ca0.1Ba2Cu3O6.3 | Cuprate | 42.0 | 42.0 | d-wave | — | ambientunconv | 2004 | 1 | T1 | 9/10 |
| Hg2Sr2YCu2O8-δ | Cuprate | 42.0 | 42.0 | d-wave | 1212 | ambientunconv | 2002 | 3 | T2 | 10/10 |
| SmFeAsO0.9H0.10 | Iron-based | 42.0 | 42.0 | — | — | ambientunconv | 2017 | 1 | T1 | 8/10 |
| YBa2Cu3O6.44 | Cuprate | 42.0 | 42.0 | d-wave | ortho-II | ambientunconvCDW/SDW | 2014 | 1 | T1 | 10/10 |
| Li0.6(NH2)0.2(NH3)0.8Fe0.99V0.01Se | Iron-based | 41.7 | — | — | — | unconv | 2019 | 2 | T1 | 6/10 |
| CaB2 | Conventional | 41.6 | — | — | — | ambient | 2009 | 6 | T1 | 7/10 |
| C:H | Conventional | 41.6 | — | — | — | 2019 | 2 | T1 | 6/10 |
| ErBa2Cu2.79Zn0.12Fe0.09O7-δ | Cuprate | 41.5 | 41.5 | d-wave | cuprate_123 | ambientunconv | 2000 | 1 | T1 | 10/10 |
| Lix(C8H11N)yFe1-zSe | Iron-based | 41.5 | 41.5 | — | — | ambientunconv | 2016 | 1 | T1 | 8/10 |
| InB2 | Conventional | 41.5 | — | — | — | ambient | 2021 | 1 | T1 | 7/10 |
| Nax(C8H11N)yFe1-zSe | Iron-based | 41.5 | 41.5 | — | — | ambientunconv | 2016 | 1 | T1 | 8/10 |
| YBa2Cu3O6.4 | Cuprate | 41.5 | 41.5 | d-wave | cuprate_123 | ambientunconv | 1993 | 7 | T1 | 10/10 |
| Li0.6(NH2)0.2(NH3)0.8Fe0.995V0.005Se | Iron-based | 41.1 | — | — | — | unconv | 2019 | 1 | T1 | 6/10 |
| YBa2(Cu0.9915Li0.0085)3O6.6 | Cuprate | 41.0 | 41.0 | d-wave | cuprate_2212 | ambientunconv | 2000 | 1 | T2 | 10/10 |
| CeFeAsO0.84F0.16 | Iron-based | 41.0 | — | — | — | ambientunconv | 2008 | 3 | T1 | 7/10 |
| Hg2(Ba0.75Sr0.25)2(Y0.80Ca0.20)Cu2O8-δ | Cuprate | 41.0 | 41.0 | d-wave | 2212 | ambientunconv | 2003 | 1 | T2 | 10/10 |
| Ca0.8La0.2(Fe0.973Ru0.027)2As2 | Iron-based | 41.0 | — | — | — | unconv | 2015 | 1 | T1 | 6/10 |
| YBa2Cu3O6.53 | Cuprate | 41.0 | — | d-wave | — | unconv | 2003 | 1 | T1 | 7/10 |
| MgB1.8C0.2 | MgB₂ | 41.0 | 41.0 | — | — | ambient | 2001 | 4 | T1 | 8/10 |
| Lix(C6H16N2)yFe2-zSe2 | Iron-based | 41.0 | — | — | — | unconv | 2015 | 3 | T1 | 6/10 |
| Ca5(Sc0.5Ti0.5)4Fe2As2O11-y | Iron-based | 41.0 | 41.0 | — | n=4 perovskite-type | ambientunconv | 2012 | 1 | — | 9/10 |
| YBa2(Cu1-xLix)3O6.6 | Cuprate | 41.0 | 41.0 | d-wave | cuprate_123 | ambientunconvCDW/SDW | 2002 | 1 | — | 10/10 |
| LaFeAsO0.4F0.6 | Iron-based | 41.0 | — | — | — | unconv | 2008 | 1 | T1 | 6/10 |
| NdBaCaCu3O7-d | Cuprate | 41.0 | 41.0 | d-wave | 1113 | ambientunconv | 2003 | 1 | T1 | 10/10 |