Magnetic studies of the lightly Ru doped perovskite rhodates

Abstract: The solid solution between the ferromagnetic metal and the enhanced paramagnetic metal was recently reported (Phys. Rev. B 69 (2004) 024410), and an unexpected feature was found in the specific heat data at of . The feature was reinvestigated further by characterizing additional samples with various Ru concentrations in the vicinity of . Specific heat and magnetic susceptibility data indicate that the feature reflects a peculiar magnetism of the doped perovskite, which appears only in the very narrow composition range . [Copyright &y& Elsevier]