La2CuO4
E484697
La2CuO4 is a copper-oxide compound that serves as the undoped parent material of high-temperature cuprate superconductors, exhibiting strong electron correlations and antiferromagnetic order.
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Mott insulator
ⓘ
antiferromagnet ⓘ copper oxide ⓘ cuprate ⓘ inorganic compound ⓘ |
| bandGapType | charge-transfer gap ⓘ |
| belongsToFamily | 214 cuprates ⓘ |
| chemicalFormula | La2CuO4 NERFINISHED ⓘ |
| containsElement |
copper
ⓘ
lanthanum ⓘ oxygen ⓘ |
| containsStructuralUnit | CuO2 planes ⓘ |
| coordinationEnvironment | CuO6 octahedra ⓘ |
| crystalStructure | K2NiF4-type ⓘ |
| crystalSystem |
orthorhombic (low temperature phase)
ⓘ
tetragonal ⓘ |
| discoveredAsParentOf | La2−xBaxCuO4 superconductor ⓘ |
| electronicStructure | Cu2+ (3d9) ions in CuO2 planes ⓘ |
| hasAbbreviation | LCO NERFINISHED ⓘ |
| hasDimensionality | quasi-two-dimensional electronic structure ⓘ |
| hasExchangeInteraction | strong antiferromagnetic superexchange via oxygen ⓘ |
| hasProperty |
antiferromagnetic order
ⓘ
charge-transfer insulator behavior ⓘ strong electron correlations ⓘ |
| hasTransition |
Néel transition to antiferromagnetic order
ⓘ
structural tetragonal-orthorhombic transition ⓘ |
| hostLatticeFor |
Ba-doped La2−xBaxCuO4 superconductors
ⓘ
Sr-doped La2−xSrxCuO4 superconductors ⓘ |
| isUndopedParentOf | high-temperature cuprate superconductors ⓘ |
| magneticOrder | antiferromagnetic ⓘ |
| NéelTemperatureApprox | ~300 K ⓘ |
| parentCompoundOf |
La2−xBaxCuO4
NERFINISHED
ⓘ
La2−xCaxCuO4 NERFINISHED ⓘ La2−xSrxCuO4 ⓘ |
| relatedToConcept |
cuprate superconductors
ⓘ
high-temperature superconductivity ⓘ spin-1/2 Heisenberg antiferromagnet on a square lattice ⓘ strongly correlated electron systems ⓘ |
| spaceGroup |
Bmab (low temperature)
ⓘ
I4/mmm (high temperature) ⓘ |
| superconductivityUponDopingWith |
barium
ⓘ
calcium ⓘ strontium ⓘ |
| synthesisMethod | solid-state reaction of La2O3 and CuO ⓘ |
| usedAs |
benchmark material for strongly correlated electron theories
ⓘ
model system for cuprate physics ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.