We report ${}^{59}\mathrm{Co}$ and ${}^{71}\mathrm{Ga}$ nuclear magnetic resonance investigations of the quasi-one-dimensional Kondo lattice compound ${\mathrm{CeCo}}_2{\mathrm{Ga}}_8$. Below the coherence temperature, $T^{*}\approx 29\mathrm{K}$, the Knight shift, as well as the nuclear spin-spin relaxation rate, the nuclear spin-lattice relaxation rate exhibits anomalous temperature-dependent behaviors. The universal scaling of the Knight shift anomaly with temperature is in accordance with the predictions of the two-fluid model. Unlike many other heavy fermion materials, the spin-lattice relaxation rate shows a broad minimum around $T^{*}$, precisely concurrent with a rapid increase in the spin-spin relaxation rate below $T^{*}$. Our analysis suggests an enhancement of the antiferromagnetic correlation length or time below $T^{*}$, which might contribute to the emergence of heavy-electron behavior.

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• Kondo effect
• Heavy-fermion systems
• Strongly correlated systems
• Kondo lattice model
• Nuclear magnetic resonance