ASPECTS OF THE CORRELATION-EFFECTS, ANTIFERROMAGNETIC ORDER, AND TRANSLATIONAL SYMMETRY OF THE ELECTRONIC-STRUCTURE OF NIO AND COO

We have performed angle-resolved photoemission experiments and density-functional band calculations for NiO and CoO. The measured oxygen bands are in excellent agreement with the calculation, but the measured cation 3d dispersion is only about 25% of the calculated one. We have also demonstrated the effects of the antiferromagnetic order on the electronic structure of these materials. © 1990 The American Physical Society.