Magnetic studies of the lightly Ru doped perovskite rhodates Sr(Ru,Rh)O3
Abstract
The solid solution between the ferromagnetic metal SrRuO3 and the enhanced paramagnetic metal SrRhO3 was recently reported [K. Yamaura et al., Phys. Rev. B 69 (2004) 024410], and an unexpected feature was found in the specific heat data at x=0.9 of SrRu1-xRhxO3. The feature was reinvestigated further by characterizing additional samples with various Ru concentrations in the vicinity of x=0.9. 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 0.85<x0.95.
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