Perovskite structured $\mathrm{LaNi}{\mathrm{O}}_3$ is a strongly correlated metal with intriguing thermal and magnetic properties. The volume dependence of calculated and measured physical properties can add additional critical information to develop a more in-depth understanding of this strongly correlated phenomenon. Taking advantage of recent single crystal $\mathrm{LaNi}{\mathrm{O}}_3$ growth using the floating-zone method, we have measured the thermal expansion, the magnetostriction, and the pressure dependence of the magnetic susceptibility, which then allows derivation of the Grüneisen parameters ${\gamma }_e=\frac{d\text{ln}N\left(E_F\right)}{d\text{ln}V}, {\gamma }_{\chi }=\frac{d\text{ln}\chi }{d\text{ln}V}$, as well as of electric and thermal transport properties. We simulate the volume dependence of structural and magnetic properties using Density Functional Theory calculations at the Generalized Gradient Approximation level. A large discrepancy between experimental values and calculated ones suggests that strong correlations are likely to be dynamic in nature. This study also provides a side-by-side comparison of measurements in single crystal and polycrystalline samples of $\mathrm{LaNi}{\mathrm{O}}_3$ to elucidate intrinsic materials properties. A broad hump at high temperatures in the temperature dependence of magnetization found in the single crystal sample of $\mathrm{LaNi}{\mathrm{O}}_3$ has been rationalized by a model that includes the influence of electron correlations on the Landau diamagnetism.

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• Electrical conductivity
• Magnetism
• Thermal conductivity
• Thermal expansion