Abstract

The effect of a residual orbital moment on the magnetic form factor of Ni/sup ++/ is calculated. It is shown that the ordinary form factor is replaced by a tensor, and formulas are given for the slow-neutron magnetic-scattering cross sections of paramagnetic, ferromagnetic, antiferromagnetic Ni/sup ++/. It is found that the unquenched orbital moment causes a 4% expansion of the form factor relative to the spin-only' case, and that the anisotropic scattering is reduced by about ten percent. (auth)

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