MAGNETIC-MOMENT DISTRIBUTION IN BCC FE-TI ALLOYS

The elastic diffuse scattering of polarized neutrons with 4.25 Å wavelength from polycrystalline disordered bcc Fe-Ti alloys with 2.88 at % and 4.92 at % of Ti has been measured at room temperature in the scattering vector range 0.1 Å-1 ≤ K ≤ 2.4 Å-1. Analysis of the results shows the existence of a large negative moment of Ti decreasing in absolute value with alloy concentration. The Fe moment is nearly constant up to 2.88 at % of Ti and thereafter decreases. The magnetic moment disturbance is more pronounced at lower Ti concentration whereas the nuclear short range is more important at higher impurity content. Both effects are limited up to the second nearest neighbours. © 1979.