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La2CuO4
cuprate · orthorhombically distorted K2NiF4 structure · cuprate_214
ambient SCunconventionalcompeting orderdisputed
Tc max
48.0 K
Tc ambient
45.0 K
arXiv year
1987
Papers
76
Tc exp.
48.0 K
Tc theo.
40.3 K
Evidence
experimental
Tc max measured at thin_film, resistivity, DOI: 10.1103/PhysRevLett.89.107001, confirmed by 2 papers
Evidence (111 records from 76 papers)
the flat columns above are aggregates — each line here is one paper's claim| Tc (K) | P (GPa) | Sample | Method | Pairing | Year | Tier | Paper |
|---|---|---|---|---|---|---|---|
| 70.0 | — | — | — | — | 2018 | T1 | 1802.08569 |
| 50.0 | 1.0 | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevLett.58.2482 |
| 48.0 | — | thin_film | resistivity | — | 2002 | T1 | DOI: 10.1103/PhysRevLett.89.107001 |
| 45.0 | — | thin_film | resistivity | — | 2013 | T1 | DOI: 10.1103/PhysRevB.87.024509 |
| 45.0 | — | thin_film | resistivity | — | 2012 | T1 | 1210.7458 |
| 45.0 | — | polycrystal | susceptibility | — | 1998 | T1 | DOI: 10.1103/PhysRevB.58.5856 |
| 45.0 | ambient | polycrystal | susceptibility | — | 1995 | T1 | DOI: 10.1103/PhysRevB.51.16499 |
| 45.0 | — | polycrystal | resistivity, susceptibility | — | 1991 | T1 | DOI: 10.1103/PhysRevB.44.2727 |
| 45.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.7214 |
| 43.0 | — | thin_film | resistivity | — | 2025 | T1 | DOI: 10.1103/k2yd-vpbn |
| 43.0 | — | single_crystal | neutron, susceptibility | — | 2019 | T1 | 1908.09546 |
| 43.0 | ambient | polycrystal | susceptibility | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.6506 |
| 42.0 | — | single_crystal | susceptibility | — | 2017 | T1 | 1712.09720 |
| 42.0 | — | single_crystal | neutron | — | 2004 | T1 | DOI: 10.1103/PhysRevB.69.020502 |
| 42.0 | — | single_crystal | susceptibility | — | 2003 | T1 | DOI: 10.1103/PhysRevB.67.054501 |
| 42.0 | ambient | single_crystal | susceptibility | — | 2002 | T1 | DOI: 10.1103/PhysRevB.66.014528 |
| 42.0 | — | single_crystal | susceptibility | — | 2002 | T1 | cond-mat/0209648 |
| 42.0 | — | single_crystal | susceptibility, neutron | — | 1999 | T1 | DOI: 10.1103/PhysRevB.60.3643 |
| 42.0 | — | single_crystal | neutron | — | 1999 | T2 | cond-mat/9902157 |
| 42.0 | — | powder | — | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.499 |
| 41.3 | — | single_crystal | susceptibility | — | 2020 | T1 | 2008.11527 |
| 41.0 | — | thin_film | resistivity | — | 2025 | — | 2502.04231 |
| 41.0 | — | single_crystal | resistivity | — | 2016 | T1 | 1611.01697 |
| 40.3 | — | — | — | — | 2016 | T2 | 1612.07096 |
| 40.0 | — | — | — | — | 2024 | T1 | DOI: 10.1103/PhysRevB.110.184510 |
| 40.0 | — | single_crystal | neutron | — | 2018 | T1 | DOI: 10.1103/PhysRevLett.120.037003 |
| 40.0 | — | thin_film | resistivity | — | 2002 | T1 | DOI: 10.1103/PhysRevLett.89.107001 |
| 40.0 | — | — | — | d-wave | 1998 | T1 | DOI: 10.1103/PhysRevB.57.5376 |
| 40.0 | — | single_crystal | resistivity | — | 1998 | T1 | DOI: 10.1103/PhysRevB.57.R712 |
| 40.0 | — | — | — | d-wave | 1997 | T2 | cond-mat/9711151 |
| 40.0 | — | single_crystal | — | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.499 |
| 40.0 | ambient | polycrystal | resistivity, susceptibility | — | 1987 | T1 | DOI: 10.1103/PhysRevLett.58.2482 |
| 40.0 | — | polycrystal | susceptibility | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.7214 |
| 39.0 | — | thin_film | susceptibility | — | 2025 | — | 2502.04231 |
| 39.0 | — | thin_film | resistivity | — | 2025 | T1 | DOI: 10.1103/3lq2-m6p9 |
| 39.0 | ambient | single_crystal | susceptibility | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.6506 |
| 39.0 | — | single_crystal | resistivity | — | 1991 | T1 | DOI: 10.1103/PhysRevB.43.7883 |
| 38.0 | — | thin_film | — | — | 2008 | — | 0805.3189 |
| 38.0 | — | single_crystal | resistivity | — | 1991 | T1 | DOI: 10.1103/PhysRevB.43.7883 |
| 38.0 | — | polycrystal | resistivity | — | 1988 | T1 | DOI: 10.1103/PhysRevB.38.11337 |
| 37.8 | — | single_crystal | susceptibility | — | 2004 | T1 | DOI: 10.1103/PhysRevB.69.020502 |
| 37.0 | — | — | — | — | 2010 | T1 | 1009.0740 |
| 37.0 | ambient | single_crystal | resistivity | — | 1989 | T1 | DOI: 10.1103/PhysRevB.39.11445 |
| 37.0 | 1.8 | single_crystal | resistivity | — | 1989 | T1 | DOI: 10.1103/PhysRevB.39.11445 |
| 37.0 | — | polycrystal | resistivity | — | 1988 | T1 | DOI: 10.1103/PhysRevB.38.856 |
| 37.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5716 |
| 36.0 | — | thin_film | resistivity | — | 2022 | T1 | DOI: 10.1103/PhysRevB.105.024516 |
| 36.0 | — | polycrystal | susceptibility | — | 1998 | T1 | DOI: 10.1103/PhysRevB.58.5856 |
| 35.0 | — | thin_film | resistivity | — | 2012 | T1 | 1210.7458 |
| 35.0 | — | — | susceptibility | — | 2001 | T1 | cond-mat/0105390 |
| 35.0 | — | single_crystal | susceptibility | — | 1994 | T1 | DOI: 10.1103/PhysRevB.49.9057 |
| 35.0 | — | polycrystal | muSR | — | 1989 | T1 | DOI: 10.1103/PhysRevB.40.2555 |
| 35.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5716 |
| 34.0 | — | polycrystal | resistivity | — | 1988 | T1 | DOI: 10.1103/PhysRevB.38.11337 |
| 32.8 | — | single_crystal | susceptibility | — | 2004 | T1 | DOI: 10.1103/PhysRevB.69.020502 |
| 32.0 | — | single_crystal | susceptibility | — | 2003 | T1 | DOI: 10.1103/PhysRevB.67.054501 |
| 32.0 | — | single_crystal | susceptibility | — | 2003 | T1 | cond-mat/0309362 |
| 32.0 | — | single_crystal | susceptibility | — | 2002 | T1 | cond-mat/0209648 |
| 32.0 | — | polycrystal | susceptibility | — | 1998 | T1 | DOI: 10.1103/PhysRevB.58.5856 |
| 32.0 | ambient | polycrystal | susceptibility | — | 1995 | T1 | DOI: 10.1103/PhysRevB.51.16499 |
| 32.0 | — | powder | — | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.499 |
| 32.0 | ambient | polycrystal | susceptibility | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.6506 |
| 32.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5716 |
| 30.0 | — | thin_film | resistivity | — | 2022 | T1 | DOI: 10.1103/PhysRevB.105.024516 |
| 30.0 | — | thin_film | resistivity | — | 2018 | — | 1804.05519 |
| 30.0 | ambient | — | susceptibility | — | 2001 | T3 | cond-mat/0111023 |
| 30.0 | — | — | susceptibility | — | 2001 | T3 | cond-mat/0111023 |
| 30.0 | — | — | — | d-wave | 1995 | T1 | DOI: 10.1103/PhysRevB.51.3840 |
| 30.0 | — | polycrystal | resistivity | — | 1989 | T1 | DOI: 10.1103/PhysRevB.39.12331 |
| 30.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5716 |
| 29.0 | — | — | susceptibility | — | 1995 | T2 | cond-mat/9507124 |
| 29.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5672 |
| 29.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5716 |
| 28.6 | — | single_crystal | muSR | d-wave | 2025 | T1 | 2507.20138 |
| 28.0 | ambient | single_crystal | susceptibility | — | 1993 | T1 | DOI: 10.1103/PhysRevB.48.6506 |
| 25.0 | — | single_crystal | resistivity | — | 2010 | T1 | 1001.1518 |
| 25.0 | — | single_crystal | resistivity | — | 2008 | T1 | 0807.4290 |
| 25.0 | — | thin_film | resistivity | — | 2004 | T1 | DOI: 10.1103/PhysRevLett.93.157002 |
| 23.0 | — | thin_film | resistivity | — | 2025 | T1 | DOI: 10.1103/3lq2-m6p9 |
| 22.0 | — | polycrystal | resistivity | — | 1987 | T1 | DOI: 10.1103/PhysRevB.36.5716 |
| 20.0 | — | single_crystal | resistivity | — | 1998 | T2 | cond-mat/9807297 |
| 19.0 | — | thin_film | resistivity | — | 2022 | T1 | DOI: 10.1103/PhysRevB.105.024516 |
| 15.0 | ambient | — | susceptibility | — | 2001 | T3 | cond-mat/0111023 |
| 15.0 | — | — | susceptibility | — | 2001 | T3 | cond-mat/0111023 |
| 15.0 | ambient | polycrystal | susceptibility | — | 1995 | T1 | DOI: 10.1103/PhysRevB.51.16499 |
| 15.0 | — | polycrystal | resistivity | — | 1988 | T1 | DOI: 10.1103/PhysRevB.38.2820 |
| 11.0 | — | — | — | — | 2010 | T1 | 1009.0740 |
| 10.0 | — | — | — | s-wave | 1995 | T1 | DOI: 10.1103/PhysRevB.51.3840 |
| — | — | thin_film | — | — | 2025 | — | 2503.14335 |
| — | — | — | — | — | 2025 | T1 | DOI: 10.1103/PhysRevResearch.7.L012073 |
| — | — | polycrystal | — | d-wave | 2021 | T1 | DOI: 10.1103/PhysRevResearch.3.033157 |
| — | — | — | — | — | 2021 | T2 | 2105.05124 |
| — | ambient | thin_film | susceptibility | — | 2019 | T1 | 1907.01079 |
| — | — | single_crystal | susceptibility | — | 2019 | T1 | DOI: 10.1103/PhysRevLett.122.237001 |
| — | — | thin_film | susceptibility | — | 2019 | T1 | DOI: 10.1103/PhysRevMaterials.3.063803 |
| — | — | — | — | — | 2018 | T1 | 1812.03731 |
| — | — | thin_film | muSR | — | 2018 | T1 | DOI: 10.1103/PhysRevB.97.134522 |
| — | — | — | — | — | 2018 | T1 | 1802.08569 |
| — | — | — | neutron | — | 2017 | T1 | 1704.08528 |
| — | — | thin_film | resistivity, susceptibility | d-wave | 2015 | — | 1507.06292 |
| — | — | — | — | d-wave | 2011 | T1 | 1112.0964 |
| — | — | — | — | d-wave | 2011 | — | 1108.3028 |
| — | — | — | — | — | 2011 | — | 1108.4120 |
| — | — | single_crystal | neutron | — | 2010 | T1 | DOI: 10.1103/PhysRevLett.105.247001 |
| — | — | single_crystal | ARPES | — | 2005 | T1 | DOI: 10.1103/PhysRevLett.95.227002 |
| — | — | single_crystal | muSR | — | 2005 | T1 | DOI: 10.1103/PhysRevLett.95.157001 |
| — | — | — | — | — | 2003 | T1 | DOI: 10.1103/PhysRevLett.90.197007 |
| — | — | — | — | d-wave | 2002 | T2 | cond-mat/0203117 |
| — | ambient | — | resistivity | — | 2002 | T1 | cond-mat/0209281 |
| — | — | — | — | — | 1994 | T1 | DOI: 10.1103/PhysRevB.50.9426 |
| — | — | polycrystal | resistivity | — | 1993 | T1 | DOI: 10.1103/PhysRevB.47.5275 |
Structure
- Crystal structure
- orthorhombically distorted K2NiF4 structure
- Space group
- Cmca
- Phase
- cuprate_214
- Lattice a (Å)
- 3.792
- Lattice c (Å)
- 13.195
Superconducting parameters
- Pairing symmetry
- d-wave
- Gap structure
- nodal
- Hc2
- 58.0 T (out-of-plane magnetic field, H parallel c)
- λ_eph (e–ph coupling)
- 0.57
Competing orders
- T_CDW
- 60.0 K
- T_SDW
- 42.0 K
- T_AFM
- 320.0 K
Samples & pressure
- Substrate
- LaSrAlO4
- Pressure type
- none
- Doping type
- hole
- Doping level
- 0.090