Neutron-diffraction study of the antiferromagnetic form factor of La(2)NiO(4)
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 in the experimentally determined form factor, similar to those observed for La(2)CuO(4) and Sr(2)CuO(2)Cl(2). The magnetisation density deduced from the experimental data exhibits strong anisotropy in the Ni-O plane. The experimental data are compared with covalency models and a recent spin-polarised band calculation.
Bibliographic Reference: Article: Physical Review, Vol. B45 (1992) No. 10, pp. 5645-5653
Record Number: 199210749 / Last updated on: 1994-12-02
Original language: en
Available languages: en