Magnetic behavior in the system LaxGd1−xTiO3

Solid solutions were prepared encompassing the entire composition range between LaTiO3 and GdTiO3. An anomaly in the magnetization-temperature data associated with magnetic ordering within the Ti3+ sublattice was observed for the phases La0.5Gd0.5TiO3LaTiO3. La0.3Gd0.7TiO3GdTiO3 appear to be two sublattice ferrimagnets. Anomalies in the magnetization-temperature curves observed for the compositions La0.6Gd0.4TiO3La0.8Gd0.2TiO3 are consistent with spin glass behavior. The saturation magnetization of GdTiO3 at 4.2K was measured to be 5.8 ± 0.2 μB/formula unit. Susceptibility data analyzed using the mean field model show a dramatic decrease in the strength of the ferromagnetic Ti3+Ti3+ exchange on the dilution of the Gd3+ sublattice by even 5% La3+.