Browsing Geldart, Wally by Subject "Electron gas"
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Comment on `Exact electrongas response functions at high density'
For original paper see D.C. Langreth and S.H. Vosko, ibid., vol.59, p.497 (1987). Langreth and Vosko calculated correlation contributions to the HohenbergKohn energy response function Kxc(q,k). They claimed that the results ... 
Convergence properties as a function of spatial dimensionality of gradient expansions for the groundstate energy of an inhomogeneous electron gas
The extended ThomasFermi approximation for the groundstate energy of a manyfermion system is generalized to arbitrary spatial dimension. The authors' objective is a better understanding of convergence properties of such ... 
Diamagnetic susceptibility of a dense electron gas
The authors calculate the diamagnetic susceptibility of a uniform interacting electron gas in the randomphase approximation. From this the exact highdensity expansion of the diamagnetic susceptibility is obtained 
Gradient corrections in the exchange and correlation energy of an inhomogeneous electron gas
A closed form expression for the coefficient Bxc which determines the first gradient corrections to the exchange and correction energy is derived. The exact expression is obtained from an approximation that includes the ... 
Nonlocal exchange energy of manyfermion systems of arbitrary dimensionality and interparticle interaction
The exchange contributions to the groundstate energy of an inhomogeneous manyfermion system of arbitrary dimensionality are calculated. Explicit results are given for both the localdensity approximation and the lowestorder ... 
Plasmons in disordered, twocomponent, quasitwodimensional electron systems
The authors investigate the effect of elastic scattering of electrons on the properties of plasmons in a disordered, twocomponent, quasitwodimensional electron gas. Numerical results are given for dispersion relations ... 
Small and large wavelength contributions to the exchange and correlation energy of a nonuniform electron gas
For the uniform electron gas, the decomposition of the exchange and correlation energy into its individual wave vectors has proved invaluable for both a deeper understanding of its structure as well as its extensions to ... 
Spin correlations in the lowdensity electron system
The authors have calculated the spin susceptibility x(q,) within a microscopic model over the full range of densities of the electron liquid in the paramagnetic state. Electronelectron interactions are described by static ... 
Surfaceinduced quantum density oscillations in the presence of an external magnetic field
The electron number density and spin density near the surface of a model metal, semimetal, or semiconductor are calculated in the presence of a uniform magnetic field. The magnetic field is applied in a direction perpendicular ...