MICROSCOPIC THEORY OF 2-DIMENSIONAL LIQUID-HE-3

In this paper the self-consistent scheme proposed by Singwi, Tosi, Lan d, and Sjolander has been used to study the equilibrium properties of two-dimensional normal liquid He-3 at zero temperature. By employing t he Aziz potential [Hartree-Fock repulsion plus damped dispersion with an additional parameter (HFD-B)] as a realistic two-body interaction b etween helium atoms, we will calculate the static structure factor. th e pair-correlation function, and the effective interaction potential f or the density response function as well as the spin response function for different surface densities. We will also calculate the Landau pa rameters F-0(s) and F-0(alpha), and spin susceptibility for different densities. We compare the calculated spin-susceptibility enhancement f actor with experimental data and predictions of some other theories. O ur results show considerable improvement over the model potential of S ilveira et al, of a hard core plus an attractive tail. [S0163-1829(98) 02522-3].