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Neutron diffraction techniques have been used to study the antiferromagnetic form factor of a La(2)NiO(4) 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/angstom) in the experimentally determined form factor, similar to those observed for La(2)CuO(4) and Sr(2)CuO(2)Cl(2). As in the case of these latter compounds, the fit of the experimental data by a Ni(2+) ionic form factor is not satisfactory. The experimental data are compared with a recent spin-polarised band calculation and a covalency model.

Additional information

Authors: WANG X L ET AL., Iowa State University, Ames Laboratory and Department of Physics (US);LANDER G H, JRC Karlsruhe (DE);SCHULTZ A J, Argonne National Laboratory (US);LOONG C-K, Argonne National Laboratory (US);HONIG J M, Purdue University, Department of Chemistry, Lafayette (US)
Bibliographic Reference: Paper presented: 35th Annual Conference on Magnetism and Magnetic Materials, San Diego (US), Oct. 29 - Nov. 1, 1990
Availability: Available from (1) as Paper EN 35613 ORA
Record Number: 199011598 / Last updated on: 1994-12-02
Original language: en
Available languages: en