Structural Expansion for the GroundState Energy of Simple Metals. IV Static Dielectric Function
Abstract
In order to obtain the static dielectric function of electron gas in the region r_s=1.0∼3.0, the secondorder polarization terms are figured out comprehensively with the ThomasFermi screened interaction. Particularly detailed study is given for ∊({q}, 0) in the limit {q}=0 with inclusion of the dynamical effect. The resulting function ∊({q}, 0) is presented by incorporating the present results into our previous ones for the firstorder polarization terms with full account of the dynamical effect.
 Publication:

Progress of Theoretical Physics
 Pub Date:
 January 1981
 DOI:
 10.1143/PTP.65.66
 Bibcode:
 1981PThPh..65...66M