The self-energy of a positron in an electron Fermi sea
- 20 June 1982
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 15 (17) , 3725-3732
- https://doi.org/10.1088/0022-3719/15/17/011
Abstract
The positron self-energy is calculated within the random-phase approximation. Strong differences from the electron case are seen at low momenta, notably a scaling of Sigma i varies as k4 and the vanishing of the spectral weight at k=0. Tables are presented for use in interpreting diffraction experiments. Finally, a warning is given on the accuracy of the random-phase approximation applied to positrons.Keywords
This publication has 9 references indexed in Scilit:
- Theory versus experiment in low-energy positron diffraction by Cu{111}Solid State Communications, 1980
- Inelastic positron scattering in an electron gasPhysical Review B, 1980
- Low-Energy Positron Diffraction from a Cu(111) SurfacePhysical Review Letters, 1980
- Electron correlation at metallic densities. II. Calculation of the correlation coefficientJournal of Physics C: Solid State Physics, 1973
- Positron studies of condensed matterAdvances in Physics, 1973
- The slip systems in KC1: Pb: A piezospectroscopic investigation of the Pb++ centrePhysica, 1969
- Positron Annihilation in an Interacting Electron GasPhysical Review B, 1965
- Range of Excited Electrons in MetalsPhysical Review B, 1962
- Theory of Positron Annihilation in SolidsReviews of Modern Physics, 1956