Abstract
Neutron-diffraction techniques have been used to study the antiferromagnetic form factor of a single crystal at 15 K. The antiferromagnetic form factor was obtained by measuring the integrated intensities of 16 magnetic reflections. A plateau is clearly seen at low Q (up to 3 A) in the experimentally determined form factor, similar to those observed for and . The magnetization density deduced from the experimental data exhibits strong ansiotropy in the Ni-O plane. The experimental data are compared with covalency models and a recent spin-polarized band calculation.
- Received 23 January 1992
DOI:https://doi.org/10.1103/PhysRevB.45.5645
©1992 American Physical Society