Magnetic moment distribution in Ni-Pt alloys

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Abstract
We have measured the magnetic diffuse scattering of polarized and unpolarized neutrons from ferromagnetic Ni‐Pt alloys with 20‐, 30‐, 40‐, 50‐, 55‐, and 57‐ at .% Pt to determine the distribution of magnetic moments. We find that the average Ni and Pt moments decrease slowly out to about 50‐ at .% Pt and beyond that decrease rapidly toward zero at the critical concentration of 58‐ at .% Pt. The moment disturbance functions show peaks in the forward direction corresponding to moment disturbance effects that become increasingly longer ranged with increasing Pt content implying inhomogeneous moment distributions.