  Thermodynamics of weakly screened (near the one-component-plasma limit)
Yukawa fluids in two and three dimensions is analyzed in detail. It is shown
that the thermal component of the excess internal energy of these fluids, when
expressed in terms of the properly normalized coupling strength, exhibits the
scaling pertinent to the corresponding one-component-plasma limit (the scalings
differ considerably between the two- and three-dimensional situations). This
provides us with a simple and accurate practical tool to estimate thermodynamic
properties of weakly screened Yukawa fluids. Particular attention is paid to
the two-dimensional fluids, for which several important thermodynamic
quantities are calculated to illustrate the application of the approach.
