In this study, the oxygen-deficient TiO 2 , SrTiO 3 systems and transition metal ion (Cr or V) doped TiO 2 , SrTiO 3 and SrZrO 3 systems have been investigated. We prepare samples as polycrystals, single crystals and thin films for various desires. Their structural, physical and electronic properties are measured by bulk-sensitive techniques (X-Ray Diffraction, SQUID and Electro Paramagnetic Re...