A new oxide spin glass system of (1-x)FeTiO3-xFe2O3, 2

The spin correlations in a cluster type spin glass of 90FeTiO3-10Fe2O3 have been studied by neutron small and high angle scattering from a single crystal. The magnetic correlations of the moments parallel and perpendicular to the c axis, and have been separately determined and the spin configuration inside the cluster as well as the cluster configuration have been determined. The spin glass transition temperature has been found to correspond to the temperature where the spin axis inside the cluster aligns in the c axis and the antiferromagnetic modulation starts to occur inside the cluster. (author)