Effect of the oxygen deficiencies creation on the suppression of the diamagnetic behavior of SrTiO3 compound

From magnetization measurements versus temperature under the field-cooled (FC) and zero-field-cooled (ZFC) modes, we deduced the presence of a spin-glass behavior characterized by a distinctive separation of the FC and ZFC curves. This behavior was found to become more important, as increasing the oxygen-deficiency (δ).