Enhanced paramagnetism of the 4d itinerant electrons in the rhodium oxide perovskite SrRhO3

Abstract

Polycrystalline rhodium(IV) oxide perovskite SrRhO3 was obtained by high-pressure synthesis techniques, followed by measurements of the magnetic susceptibility, electrical resistivity, and specific heat. The title compound has five 4d-electrons per perovskite unit and shows Fermi-liquid behavior in its electrical resistivity. The magnetic susceptibility is large [chi(300K) \~1.1*10^{-3} emu/mol-Rh] and proportional to 1/T^2 (< 380 K), while there is no magnetic long-range order above 1.8 K. The specific heat measurements indicate a probable magnetic contribution below ~ 15 K, which is not predicted by the self-consistent renormalization theory of spin fluctuations for both antiferro- and ferromagnetic 3D nearly-ordered metals.

To be published in PRB

References in corpus (1)

• Disorder Induced Ferromagnetism in CaRuO3

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