ONSAGER MOLECULES FOR THE YUKAWA POTENTIALS - SCREENING POTENTIALS AND THE JANCOVICI COEFFICIENT IN STRONGLY COUPLED ELECTRON-SCREENED PLASMAS

Jancovici derived the exact r(2) term in the expansion of the screenin g potential of the one-component plasma (OCP) around r = 0, which led to much improved analysis of the simulation data, but the correspondin gly important term has never been calculated for electron-screened pla smas. The Onsager molecule approach provides the strong-coupling-limit result for the OCP screening potentials, features the exact Jancovici r(2) term, and gives a comprehensive physical picture of the structur e of strongly coupled plasmas. It is used here to derive the Strong-co upling screening potentials of electron-screened plasmas represented b y the Yukawa potentials and, in particular, the corresponding Jancovic i r(2) term.