  Using Green's function equation of motion within Lacroix decoupling scheme,
we examine the thermoelectric transport features of a strongly interacting
quantum dot coupled between metallic leads. We demonstrate that a qualitative
description of the thermoelectric transport in the Kondo regime requires a
complete self-consistent treatment of Green's function. The linear
thermoelectric properties, including electrical conductivity, thermal
conductivity, thermopower, and figure of merit, are analyzed as a function of
temperature ranging from Kondo to Coulomb blockade regime. The results
presented here are qualitatively consistent with existing results obtained
using different theoretical techniques.
