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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Ca5(Sc,Ti)4Fe2As2O11-y | Iron-based | 41.0 | 41.0 | — | — | ambientunconv | 2012 | 1 | T1 | 8/10 |
| H7S3 | Hydride | 41.0 | — | — | — | 2016 | 1 | T1 | 6/10 |
| Li0.8Fe0.2ODFeSe | Iron-based | 41.0 | 41.0 | — | — | ambientunconv | 2016 | 4 | T1 | 8/10 |
| Li0.84Fe0.16ODFe0.99Se | Iron-based | 41.0 | — | — | — | unconv | 2016 | 1 | T1 | 6/10 |
| Li1-xFexODFe1-ySe | Iron-based | 41.0 | — | — | — | unconv | 2016 | 1 | T1 | 6/10 |
| Li0.83Fe0.17ODFe0.97Se | Iron-based | 41.0 | — | — | — | unconv | 2016 | 1 | T1 | 6/10 |
| CeO0.84F0.16FeAs | Iron-based | 41.0 | 41.0 | — | — | ambientunconvCDW/SDW | 2008 | 2 | T1 | 8/10 |
| PrFeAsO0.87F0.13 | Iron-based | 41.0 | 41.0 | — | — | ambientunconv | 2011 | 1 | T1 | 8/10 |
| Ca5(Sc0.5Ti0.5)4Fe2As2Oy | Iron-based | 41.0 | — | — | — | unconv | 2010 | 1 | T3 | 6/10 |
| CeO1-xFxFeAs | Iron-based | 41.0 | 41.0 | — | — | ambientunconvCDW/SDW | 2008 | 1 | T1 | 8/10 |
| Li0.84Fe0.16ODFe0.98Se | Iron-based | 41.0 | 41.0 | s_pm | — | ambientunconv | 2016 | 1 | T1 | 9/10 |
| Mg2B4 | MgB₂ | 40.7 | — | — | — | 2004 | 2 | T1 | 6/10 |
| Li0.6(NH2)0.2(NH3)0.8Fe0.98V0.02Se | Iron-based | 40.7 | — | — | — | unconv | 2019 | 1 | T1 | 6/10 |
| NaB2N2 | Conventional | 40.6 | — | — | — | 2026 | 1 | T1 | 6/10 |
| Pr4Ni3O10 | Nickelate | 40.5 | — | — | trilayer | unconvCDW/SDW | 2024 | 7 | T1 | 8/10 |
| KScH3 | Hydride | 40.4 | — | — | — | ambient | 2025 | 1 | T1 | 6/10 |
| Li8H4 | Hydride | 40.3 | — | — | — | 2024 | 1 | T1 | 6/10 |
| La0.5Y0.5FeAsO0.85F0.15 | Iron-based | 40.2 | — | — | — | unconv | 2009 | 2 | T1 | 6/10 |
| La1-xBaxCuO3-y | Cuprate | 40.2 | 36.0 | d-wave | — | ambientunconv | 1987 | 1 | T1 | 9/10 |
| Be43Pb57 | Conventional | 40.2 | — | — | — | 2019 | 1 | T3 | 6/10 |
| Mg10B2 | MgB₂ | 40.2 | 40.2 | — | — | ambient | 2001 | 7 | T1 | 8/10 |
| (RE1-yRE'y)1-xEuxNiO2 | Nickelate | 40.1 | — | — | infinite_layer | unconv | 2026 | 1 | T1 | 7/10 |
| (Ba,K)Fe2As2 | Iron-based | 40.0 | 40.0 | — | — | ambientunconvCDW/SDW | 2008 | 16 | T1 | 8/10 |
| (Li0.8Fe0.2)OHFeSe | Iron-based | 40.0 | 40.0 | s-wave | — | ambientunconv | 2015 | 8 | T1 | 9/10 |
| LaFeAsO0.86F0.14 | Iron-based | 40.0 | — | — | — | unconv | 2008 | 4 | T1 | 6/10 |
| RuSr2Y1.5Ce0.5Cu2O10 | Cuprate | 40.0 | 30.0 | d-wave | 1222 | ambientunconvCDW/SDW | 2007 | 3 | T1 | 10/10 |
| Mg3TiH12 | Hydride | 40.0 | — | — | — | 2026 | 1 | T3 | 5/10 |
| CoSr2(Y0.7Ca0.3)Cu2O7+d | Cuprate | 40.0 | — | d-wave | 1212 | unconv | 2003 | 1 | T1 | 8/10 |
| (CaCuO2)3/(SrTiO3)2 | Cuprate | 40.0 | — | d-wave | infinite_layer | unconv | 2012 | 2 | T1 | 8/10 |
| Bi2-xPbxSr2CuO6+δ | Cuprate | 40.0 | 40.0 | d-wave | 2201 | ambientunconv | 2007 | 1 | T1 | 10/10 |
| Li(C5H5N)0.2Fe2Se2 | Iron-based | 40.0 | — | — | — | unconv | 2013 | 1 | T1 | 6/10 |
| Sm4Fe2As2Te1-xO4-yFy | Iron-based | 40.0 | — | — | 42214 | unconv | 2014 | 1 | T1 | 7/10 |
| La1.84Sr0.16CuO4 | Cuprate | 40.0 | 40.0 | d-wave | cuprate_214 | ambientunconv | 1987 | 22 | T1 | 10/10 |
| B2C3N | Conventional | 40.0 | — | — | — | ambient | 2026 | 2 | T1 | 7/10 |
| Li0.6(NH2)0.2(NH3)0.8Fe1-xVxSe | Iron-based | 40.0 | — | — | — | unconv | 2019 | 1 | T1 | 6/10 |
| TlyPbo.5NdSr2Cu3Ox | Cuprate | 40.0 | — | d-wave | — | unconv | 1989 | 1 | T1 | 7/10 |
| TlyPbo.5Nd2Sr2Cu3Ox | Cuprate | 40.0 | — | d-wave | — | unconv | 1989 | 1 | T1 | 7/10 |
| Sm1-x-y-zEuxCaySrzNiO2 | Nickelate | 40.0 | 40.0 | — | — | ambientunconv | 2026 | 1 | T2 | 8/10 |
| CeFeAsO1-y | Iron-based | 40.0 | — | — | — | unconv | 2010 | 1 | T1 | 6/10 |
| MenC60 | Fulleride | 40.0 | 40.0 | — | — | ambient | 2003 | 1 | — | 7/10 |
| (Fe,Al)(OH)2FeSe1.2 | Iron-based | 40.0 | 40.0 | — | — | ambientunconv | 2021 | 1 | — | 8/10 |
| TiO2/FeSe/STO | Iron-based | 40.0 | 40.0 | — | — | ambientunconv | 2025 | 1 | — | 8/10 |
| LiSiH4 | Hydride | 40.0 | — | — | — | 2020 | 1 | T1 | 5/10 |
| CaCuO2 | Cuprate | 40.0 | — | d-wave | infinite_layer | ambientunconv | 1997 | 9 | T1 | 9/10 |
| A3C60 | Fulleride | 40.0 | 40.0 | — | — | ambient | 2002 | 2 | — | 7/10 |
| (CaCuO2)n/(SrTiO3)m | Cuprate | 40.0 | — | d-wave | infinite_layer | unconv | 2012 | 1 | T1 | 8/10 |
| Li0.055HfNCl | Conventional | 40.0 | — | — | — | 2017 | 2 | T1 | 6/10 |
| LaFeAsO1-xFx | Iron-based | 40.0 | 28.0 | s-wave | — | ambientunconvCDW/SDW | 2008 | 27 | T1 | 9/10 |
| RuSr2(Gd0.7Ce0.3)2Cu2O10 | Cuprate | 40.0 | 40.0 | d-wave | 1222 | ambientunconv | 2001 | 2 | T2 | 10/10 |
| ReNiO2 | Nickelate | 40.0 | 40.0 | — | infinite_layer | ambient | 2026 | 1 | — | 8/10 |