Electronic structure studies ofLa2CuO4

1 July 1988

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 38 (1) , 913-916
https://doi.org/10.1103/physrevb.38.913

Abstract

We report results of positron-electron momentum-distribution measurements of single-crystal

{La}_{2}

O_{4}

using two-dimensional angular correlation of positron-annihilation-radiation techniques. The data contain two components: a large (Å85%), isotropic corelike electron contribution and a remaining anisotropic valence-electron contribution modeled using a linear combination of atomic orbitals-molecular orbital method and a localized ion scheme, within the independent-particle model approximation. This work suggests a ligand-field Hamiltonian to be justified for describing the electronic properties of perovskite materials.

Keywords

ELECTRONIC STRUCTURE

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