Browsing Geldart, Wally by Submit Date
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Exchange and correlation energy in a nonuniform fermion fluid
Recent results for the surface energy of jelliumlike surfaces are investigated within the functionaldensity formalism. These results along with firstprinciples considerations support the contention that the first gradient ... 
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 ... 
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 ... 
Wavevector decomposition of the exchange and correlation contributions to a metallic surface energy
The authors decompose the lowestorder nonlocal corrections to the localdensity approximation to the exchange and correlation component of the metallic surface energy in terms its wavevector components. Comparison with ... 
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 ... 
Comment on `Quantummechanical interpretation of the exchangecorrelation potential of KohnSham densityfunctional theory'
For original paper see M.K. Harbola and V. Sahni, ibid., vol.62, p.489 (1989). Harbola and Sahni suggested a procedure for constructing the exchangecorrelation potential that enters the KohnSham singleparticle equations. ... 
Heat capacity of gadolinium near the Curie temperature
Highresolution AC calorimetric data near the Curie point are reported for several single crystals of gadolinium. The critical temperature and the shape of the heatcapacity curve near Tc both depend on the samplepreparation ... 
Wavevector analysis of metallic surface energy
The exchange and correlation energy of a nonuniform electronic system can be decomposed into contributions of different wavevector fluctuations. Both the long and shortwavelength contributions to this energy can be ... 
Resistive anomalies at the critical point of isotropic ferromagnets
The effect of spin fluctuations on electrical resistivity (T) is studied in a singleband model. It is shown that d(T)/dT varies as the magnetic specific heat for TTc as well as TTc and that both shortrange and longrange ... 

Theory of impurityconcentration dependence of freezing temperatures of metallic spin glasses
The authors present a theory of the freezing temperature Tg of metallic spin glasses. Length scales associated with intrinsic sd scattering and finite temperature play essential roles. They describe an approach in which ... 
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 ... 

Theory of SpinFluctuation Resistivity Near CriticalPoint of BinaryAlloys and Antiferromagnets
No abstract available. 
Anharmonicity and cross section for absorption of radiation by water dimer
We calculate the absorption cross section of water dimer molecules in thermal equilibrium at temperatures typical of the lower atmosphere using quantum mechanical coupled nonlinear equations of motion. Empirical Morseoscillator ... 
Negative electronelectron drag between narrow quantum Hall channels
Momentum transfer due to Coulomb interaction between two parallel, twodimensional, narrow, and spatially separated layers, when a current Idrive is driven through one layer, is studied in the presence of a perpendicular ... 
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 
Motion of a point dipole in an infinite hole through a superconductor
The authors consider the system of a magnetic point dipole placed in an infinite square hole through a superconductor. Using the method of images they obtain the potential and the field distribution in the hollow. Using ... 