We synthesized ${\mathrm{CaRuO}}_3$ (001) thin films on a set of substrates and investigated their electronic and magnetic properties via combining magnetotransport measurements with first-principles density-functional theory calculations. The experimental results indicate that a moderate strain can introduce the Kondo effect in the system, leading to a significant modulation of the non-Fermi liquid behavior. Moreover, when the strain reaches a certain threshold, the system undergoes a metal-semiconductor transition, accompanied by a transition from a nonmagnetic state to a plausible G-type antiferromagnetic state. We attribute the observed phenomena in ${\mathrm{CaRuO}}_3$ to strain-induced disruption of the delicate balance between the itinerant and the local Ru $4d$ electrons. These findings shed light on the intriguing magnetic and non-Fermi liquid behavior of ${\mathrm{CaRuO}}_3$, systematically tailored by heteroepitaxial strain.

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• Density of states
• Kondo effect
• Transport phenomena
• Ruthenates
• Ultrathin films
• Density functional calculations
• Physical deposition
• Resistivity measurements
• Strain engineering
• X-ray diffraction
• X-ray reflectivity