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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Ba0.6K0.4Fe2As2 | Iron-based | 39.1 | 39.1 | — | — | ambientunconvCDW/SDW | 2008 | 96 | T1 |
| Ba1-xKxFe2As2 | Iron-based | 39.0 | 39.0 | s-wave | — | ambientunconvCDW/SDW | 2008 | 99 | T1 | 9/10 |
| MgB2 | MgB₂ | 39.0 | 39.0 | s-wave | — | ambient | 2001 | 787 | T1 | 9/10 |
| Fe2As2Ca6(Al,Ti)4Oy | Iron-based | 39.0 | 39.0 | — | — | ambientunconv | 2010 | 1 | T1 | 8/10 |
| AcBH16 | Hydride | 39.0 | — | — | — | 2024 | 2 | T1 | 6/10 |
| Mg1-xMnxB2 | MgB₂ | 39.0 | 39.0 | — | — | ambient | 2005 | 3 | T1 | 8/10 |
| (Fe2As2)(Ca6(Al0.5Ti0.5)4O12) | Iron-based | 39.0 | — | — | — | unconv | 2011 | 1 | T1 | 6/10 |
| La1.935Sr0.065CuO4 | Cuprate | 39.0 | 39.0 | d-wave | cuprate_214 | ambientunconv | 1989 | 3 | T1 | 10/10 |
| Ba0.66K0.34Fe2As2 | Iron-based | 39.0 | 39.0 | s_pm | — | ambientunconv | 2014 | 1 | T1 | 9/10 |
| Bax(NH3)Fe2Se2 | Iron-based | 39.0 | 39.0 | s-wave | — | ambientunconv | 2015 | 1 | T1 | 9/10 |
| La1.83Sr0.17CuO4 | Cuprate | 39.0 | 39.0 | d-wave | cuprate_214 | ambientunconv | 1987 | 27 | T1 | 10/10 |
| (Fe2As2)(Sr4Mg0.4Ti1.6O6) | Iron-based | 39.0 | 39.0 | — | — | ambientunconv | 2009 | 1 | — | 8/10 |
| (Fe2As2)(Ca6(Al,Ti)4Oy) | Iron-based | 39.0 | — | — | — | unconv | 2011 | 2 | T1 | 6/10 |
| Mg1-xB2 | MgB₂ | 39.0 | — | — | — | 2001 | 2 | T1 | 6/10 |
| Be2Si | MgB₂ | 39.0 | — | — | — | 2012 | 1 | T3 | 6/10 |
| BeB4 | Conventional | 39.0 | — | — | — | ambient | 2020 | 3 | T1 | 7/10 |
| CeFeAsO0.8F0.2 | Iron-based | 39.0 | — | — | — | unconv | 2012 | 1 | T1 | 6/10 |
| Ba0.8Fe2Se2 | Iron-based | 39.0 | 39.0 | — | — | ambientunconv | 2012 | 1 | T1 | 8/10 |
| La1.85Ba0.15CuO4 | Cuprate | 39.0 | 39.0 | d-wave | — | ambientunconv | 1987 | 6 | T1 | 9/10 |
| Li1.0(C5D5N)yFe2-zSe2 | Iron-based | 39.0 | 39.0 | — | — | ambientunconv | 2025 | 1 | T1 | 8/10 |
| (La1/6Gd1/3Ba1/6Sr1/6Ce1/6)8Cu6O18.83 | Cuprate | 39.0 | — | d-wave | — | unconv | 1990 | 1 | T1 | 7/10 |
| LiMgB2 | MgB₂ | 39.0 | — | — | — | 2022 | 1 | T1 | 6/10 |
| LiMgN | Conventional | 39.0 | — | — | — | 2012 | 1 | T2 | 6/10 |
| (Mg,Be)B2 | MgB₂ | 39.0 | 39.0 | — | 1313 | ambient | 2001 | 1 | T2 | 9/10 |
| Ca0.82La0.18Fe(As0.995P0.005)2 | Iron-based | 39.0 | — | — | — | unconv | 2013 | 1 | T1 | 6/10 |
| Ba0.61K0.39Fe2As2 | Iron-based | 39.0 | 39.0 | — | — | ambientunconv | 2011 | 3 | T1 | 8/10 |
| La1.96Sr0.04CuO4 | Cuprate | 39.0 | 39.0 | d-wave | cuprate_214 | ambientunconv | 1990 | 3 | T1 | 10/10 |
| Mg0.995Al0.005B2 | MgB₂ | 39.0 | 39.0 | — | — | ambient | 2001 | 1 | — | 8/10 |
| Ba0.64K0.36Fe2As2 | Iron-based | 38.8 | 38.5 | — | — | ambientunconv | 2023 | 2 | T1 | 8/10 |
| BaNH3FeSe | Iron-based | 38.8 | — | — | — | unconv | 2013 | 1 | T3 | 6/10 |
| Ba-FeSe | Iron-based | 38.8 | 38.8 | — | — | ambientunconv | 2013 | 1 | — | 8/10 |
| Ba0.65K0.35Fe2As2 | Iron-based | 38.8 | — | s-wave | — | unconv | 2014 | 5 | T1 | 7/10 |
| Mg0.975Al0.025B2 | MgB₂ | 38.8 | 38.8 | — | — | ambient | 2001 | 1 | — | 8/10 |
| Mg(B1-xCx)2 | MgB₂ | 38.6 | 38.6 | — | — | ambient | 2003 | 7 | T1 | 8/10 |
| Mg(B0.9905C0.0095)2 | MgB₂ | 38.6 | — | — | — | 2003 | 1 | T1 | 6/10 |
| Ba0.73K0.27Fe2As2 | Iron-based | 38.5 | 38.5 | — | — | ambientunconv | 2009 | 2 | T1 | 8/10 |
| Ba0.68K0.32Fe2As2 | Iron-based | 38.5 | 38.5 | s_pm | 122 | ambientunconv | 2009 | 11 | T1 | 10/10 |
| Mg0.98B2 | MgB₂ | 38.5 | — | — | — | 2008 | 1 | T1 | 6/10 |
| La1.837Sr0.163CuO4 | Cuprate | 38.5 | 38.5 | d-wave | — | ambientunconv | 1999 | 2 | T2 | 9/10 |
| Mg0.95Li0.05B2 | MgB₂ | 38.5 | — | — | — | 2008 | 1 | T1 | 6/10 |
| Ba0.60K0.40Fe2As2 | Iron-based | 38.5 | 38.5 | — | — | ambientunconv | 2023 | 1 | T1 | 8/10 |
| MgB102 | MgB₂ | 38.5 | 38.5 | s-wave | — | ambient | 2016 | 1 | T1 | 9/10 |
| Hg2(Ba0.8Sr0.2)2(Y0.80Ca0.20)Cu2O8-δ | Cuprate | 38.5 | 38.5 | d-wave | 2212 | ambientunconv | 2003 | 1 | T2 | 10/10 |
| CeO0.9F0.1FeAs | Iron-based | 38.4 | 38.4 | — | — | ambientunconv | 2008 | 2 | T1 | 8/10 |
| AsLi7 | Conventional | 38.4 | — | — | — | 2022 | 2 | T1 | 7/10 |
| MgB2-0.04C0.04 | MgB₂ | 38.4 | 38.4 | — | — | ambient | 2003 | 1 | — | 8/10 |
| Mg0.97Zn0.03B2 | MgB₂ | 38.4 | 38.4 | — | — | ambient | 2001 | 1 | T2 | 8/10 |
| MgB2-0.02C0.02 | MgB₂ | 38.3 | 38.3 | — | — | ambient | 2003 | 1 | — | 8/10 |
| W2N3 | Conventional | 38.0 | — | — | — | ambient | 2020 | 5 | T1 | 7/10 |
| FeSe | Iron-based | 38.0 | 8.5 | — | — | ambientunconvCDW/SDW | 2008 | 387 | T1 | 8/10 |