Uniaxial magnetocrystalline anisotropy in $\mathrm{CaRu}{\mathrm{O}}_3$

Abstract

$\mathrm{CaRu}{\mathrm{O}}_3$ is a paramagnetic metal and since its low temperature resistivity is described by $\rho ={\rho }_0+A{T}^{\gamma }$ with $\gamma \sim 1.5$, it is also considered a non-Fermi liquid (NFL) metal. We have performed extensive magnetoresistance and Hall effect measurements of untwinned epitaxial films of $\mathrm{CaRu}{\mathrm{O}}_3$. These measurements reveal that $\mathrm{CaRu}{\mathrm{O}}_3$ exhibits uniaxial magnetocrystalline anisotropy. In addition, the low-temperature NFL behavior is most effectively suppressed when a magnetic field is applied along the easy axis, suggesting that critical spin fluctuations, possibly due to proximity of a quantum critical phase transition, are related to the NFL behavior.

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References in corpus (2)

• Disorder Induced Ferromagnetism in CaRuO3
• Non-Fermi liquid behavior and scaling of low frequency suppression in optical conductivity spectra of CaRuO${}_3$

Cited by in corpus (2)

• Integer spin-chain antiferromagnetism of the 4d oxide CaRuO3 with post-perovskite structure
• The anomalous magnetic properties of $CaRu{O}_3$ probed by AC and DC magnetic measurements and by low Ti impurity doping