Spin reorientation phenomena in the Dy1-xYxFe11Ti(x = 0, 0.2, 0.4, 0.6, 0.8 and 1) compounds
have been studied by ac susceptibility and magnetization measurements on bulk and magnetically aligned
powder samples. The observed concentration dependence of the spin reorientation temperatures and the
temperature dependence of the cone structure of this series of compounds have been analyzed on the basis of
the crystal field model. A set of crystal field parameters is proposed. ?? 1993.
