Abstract
We present measurements of electrical resistivity (ρ) and magnetoresistance (Δρ/ρ) in epitaxial thin films of BaRuO3 with a hexagonal four-layer structure. The low-temperature resistivity (3K<T<20K) shows a quadratic temperature dependence ρ=ρ0+aT2. Measurements of magnetoresistance in the temperature range of 5K<T<50K and fields up to 8T reveal a failure of the conventional Kohler's rule. On the other hand, we find that the magnetoresistance data can be scaled if one assumes that the resistivity ρ is related to the scattering time τ as ρ∝1/τα with α≃0.25.
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