Free energy of the interacting electron gas including higher-order exchange effects
- 15 April 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 9 (8) , 3307-3312
- https://doi.org/10.1103/physrevb.9.3307
Abstract
We discuss the free energy of an electron gas with the long-range Coulomb interaction by using the dielectric-response function which includes the higher-order exchange processes. Our result reproduces earlier results of Gell-Mann and Brueckner; Nozières and Pines; Hubbard; Englert and Brout; and others as special cases. The longitudinal spin-fluctuation effect is included in the present result, but its role seems to be significantly different from what is expected in the Hubbard-type model due to the large cross effect of the spin fluctuation and charge fluctuation even in the paramagnetic state.Keywords
This publication has 14 references indexed in Scilit:
- Spin and Charge Susceptibility of a Ferromagnetic Electron GasPhysical Review B, 1973
- Charge and Spin Susceptibility of a Ferromagnetic Electron GasPhysical Review Letters, 1969
- Effect of Virtual Spin Waves on the Properties of Strongly Paramagnetic MetalsJournal of Applied Physics, 1968
- Low-Temperature Properties of Nearly Ferromagnetic Fermi LiquidsPhysical Review Letters, 1966
- Effect of Ferromagnetic Spin Correlations on SuperconductivityPhysical Review Letters, 1966
- New Method for Calculating the One-Particle Green's Function with Application to the Electron-Gas ProblemPhysical Review B, 1965
- Dielectric Formulation of Quantum Statistics of Interacting ParticlesPhysical Review B, 1960
- A dielectric formulation of the many body problem: Application to the free electron gasIl Nuovo Cimento (1869-1876), 1958
- The description of collective motions in terms of many-body perturbation theory. II. The correlation energy of a free-electron gasProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1958
- Correlation Energy of an Electron Gas at High DensityPhysical Review B, 1957