  The present research paper is an investigation of dark energy nature of
logarithmic $f(R, T)$-gravity cosmology in a flat FLRW space-time universe. We
have derived modified Einstein's field equations for the function $f(R,
T)=R-16\pi G\alpha\ln(T)$ where $R$ is the Ricci scalar curvature, $T$ is the
trace of the stress energy momentum tensor and $\alpha$ is a model parameter.
We have solved field equations in the form of two fluid scenario as
perfect-fluid and dark-fluid, where dark fluid term is derived in the form of
perfect fluid source. We have made an observational constraints on the
cosmological parameters $\Omega_{(m)}, \omega^{(de)}$ and $H_{0}$ using
$\chi^{2}$ test with observational datasets like Pantheon sample of SNe Ia and
$H(z)$. With these constraints we have discussed our model with deceleration
parameter $q$, energy parameters $\Omega_{(m)}, \Omega_{(de)}$, EoS parameter
$\omega^{(de)}$ etc. Also, we have done Om diagnostic analysis. The derived
$f(R, T)$ model shows a quintessence dark energy model $\omega^{(de)}>-1$ and
late-time universe approaches to $\Lambda$CDM model.
