Browsing Geldart, Wally by Issue Date

Now showing items 1-20 of 57

  • Electron-Distribution Around a Magnetic Impurity in a Nonmagnetic Host 

    JENA, P., and DJW GELDART. 1973. "Electron-Distribution Around a Magnetic Impurity in a Nonmagnetic Host." Physical Review B 7(1): 439-450. Copyright © 1973 American Physical Society.
    No abstract available.

  • Resistive anomalies at the critical point of isotropic ferromagnets 

    Richard, T. G., and D. J. W. Geldart. 1973. "Resistive anomalies at the critical point of isotropic ferromagnets." Physical Review Letters 30(7): 290-4. Copyright © 1973 American Physical Society.
    The effect of spin fluctuations on electrical resistivity (T) is studied in a single-band model. It is shown that d(T)/dT varies as the magnetic specific heat for TTc as well as TTc and that both short-range and long-range ...

  • Theory of Spin-Fluctuation Resistivity Near Critical-Point of Ferromagnets 

    GELDART, DJW, and TG RICHARD. 1975. "Theory of Spin-Fluctuation Resistivity Near Critical-Point of Ferromagnets." Physical Review B 12(11): 5175-5183. Copyright © 1975 American Physical Society.
    No abstract available.

  • Gradient corrections in the exchange and correlation energy of an inhomogeneous electron gas 

    Rasolt, M., and D. J. W. Geldart. 1975. "Gradient corrections in the exchange and correlation energy of an inhomogeneous electron gas." Physical Review Letters 35(18): 1234-7. Copyright © 1975 American Physical Society.
    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 ...

  • Exchange and Correlation Energy of an Inhomogeneous Electron-Gas at Metallic Densities 

    GELDART, DJW, and M. RASOLT. 1976. "Exchange and Correlation Energy of an Inhomogeneous Electron-Gas at Metallic Densities." Physical Review B 13(4): 1477-1488. Copyright © 1976 American Physical Society.
    No abstract available.

  • Theory of Spin-Fluctuation Resistivity Near Critical-Point of Binary-Alloys and Antiferromagnets 

    RICHARD, TG, and DJW GELDART. 1977. "Theory of Spin-Fluctuation Resistivity Near Critical-Point of Binary-Alloys and Antiferromagnets." Physical Review B 15(3): 1502-1513. Copyright © 1977 American Physical Society.
    No abstract available.

  • Analytical Structure of Wave-Number-Dependent Susceptibility of Many-Fermion Systems at Low-Temperature and Long Wavelength 

    GELDART, DJW, and M. RASOLT. 1977. "Analytical Structure of Wave-Number-Dependent Susceptibility of Many-Fermion Systems at Low-Temperature and Long Wavelength." Physical Review B 15(3): 1523-1532. Copyright © 1977 American Physical Society.
    No abstract available.

  • Wave-vector analysis of metallic surface energy 

    Rasolt, M., G. Malmstrom, and D. J. W. Geldart. 1979. "Wave-vector analysis of metallic surface energy." Physical Review B (Condensed Matter) 20(8): 3012-19. Copyright © 1979 American Physical Society.
    The exchange and correlation energy of a nonuniform electronic system can be decomposed into contributions of different wave-vector fluctuations. Both the long- and short-wavelength contributions to this energy can be ...

  • Critical exponents and amplitude ratios from electrical resistivity measurements of dysprosium 

    Malmstrom, G., and D. J. W. Geldart. 1980. "Critical exponents and amplitude ratios from electrical resistivity measurements of dysprosium." Physical Review B (Condensed Matter) 21(3): 1133-8. Copyright © 1980 American Physical Society.
    Resistive anomalies in helical antiferromagnets are shown to reflect the temperature dependence of the specific heat sufficiently close to the Neel temperature. The temperature dependence of superzone energy gaps does not ...

  • Wave-vector decomposition of the exchange and correlation contributions to a metallic surface energy 

    Rasolt, M., and D. J. W. Geldart. 1980. "Wave-vector decomposition of the exchange and correlation contributions to a metallic surface energy." Physical Review B (Condensed Matter) 21(8): 3158-66. Copyright © 1980 American Physical Society.
    The authors decompose the lowest-order nonlocal corrections to the local-density approximation to the exchange and correlation component of the metallic surface energy in terms its wave-vector components. Comparison with ...

  • Analytical structure of the wave-number-dependent susceptibility of many-fermion systems at low temperature and long wavelength. II 

    Geldart, D. J. W., and M. Rasolt. 1980. "Analytical structure of the wave-number-dependent susceptibility of many-fermion systems at low temperature and long wavelength. II." Physical Review B (Condensed Matter) 22(8): 4079-80. Copyright © 1980 American Physical Society.
    For pt.I see ibid., vol.15, p.1523 (1977). It is shown that the nonanalytic structure of the wave-number-dependent susceptibility noted by Geldart and Rasolt is not removed by including repeated particle-particle scattering

  • Umklapp electron-electron scattering and the low-temperature electrical resistivity of the alkali metals 

    MacDonald, A. H., R. Taylor, and D. J. W. Geldart. 1981. "Umklapp electron-electron scattering and the low-temperature electrical resistivity of the alkali metals." Physical Review B (Condensed Matter) 23(6): 2718-30. Copyright © 1981 American Physical Society.
    The Umklapp fraction, , for electron-electron scattering in the alkali metals has been calculated using first-principles pseudopotentials. Both Coulomb scattering and phonon-exchange scattering have been included. For a ...

  • Magnetic susceptibility of metallic transition-metal dichalcogenides 

    MacDonald, A. H., and D. J. W. Geldart. 1981. "Magnetic susceptibility of metallic transition-metal dichalcogenides." Physical Review B (Condensed Matter) 24(1): 469-72. Copyright © 1981 American Physical Society.
    A tight-binding model has been used to estimate the anisotropy of the magnetic susceptibility of the metallic transition-metal dichalcogenides. The calculated anisotropies obtained are in qualitative agreement with ...

  • Anisotropic Superconductors with Repulsive Average Interaction - Comment 

    LEAVENS, CR, AH MACDONALD, and DJW GELDART. 1982. "Anisotropic Superconductors with Repulsive Average Interaction - Comment." Physical Review B 26(7): 3960-3964. Copyright © 1982 American Physical Society.
    No abstract available.

  • Small and large wavelength contributions to the exchange and correlation energy of a nonuniform electron gas 

    Rasolt, M., and D. J. W. Geldart. 1982. "Small and large wavelength contributions to the exchange and correlation energy of a nonuniform electron gas." Physical Review B (Condensed Matter) 25(8): 5133-46. Copyright © 1982 American Physical Society.
    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 ...

  • Comment on `Anisotropic superconductors with repulsive average interaction' 

    Leavens, C. R., A. H. MacDonald, and D. J. W. Geldart. 1982. "Comment on `Anisotropic superconductors with repulsive average interaction'." Physical Review B (Condensed Matter) 26(7): 3960-4. Copyright © 1982 American Physical Society.
    For original paper see M.D. Whitmore and J.P. Carbotte, ibid., vol.23, p.5782 (1981). In a recent paper Whitmore and Carbotte concluded that a sufficient condition for the superconducting state to be stable relative to the ...

  • Depth-dependent static shielding of an impurity by a quantum plasma in a magnetic field 

    Gumbs, G., and D. J. W. Geldart. 1984. "Depth-dependent static shielding of an impurity by a quantum plasma in a magnetic field." Physical Review B (Condensed Matter) 29(10): 5445-57. Copyright © 1984 American Physical Society.
    The static shielding of a charged impurity embedded in a quantum plasma is studied with the use of linear-response theory. The required response function is calculated in the random-phase approximation with a uniform ...

  • Linear-response function of a semi-infinite degenerate plasma in the presence of an external magnetic field 

    Glasser, M. L., D. J. W. Geldart, and G. Gumbs. 1984. "Linear-response function of a semi-infinite degenerate plasma in the presence of an external magnetic field." Physical Review B (Condensed Matter) 29(12): 6468-73. Copyright © 1984 American Physical Society.
    The static linear-response function x0(r,r') of a semi-infinite, degenerate plasma of noninteracting electrons is calculated in the presence of an external magnetic field perpendicular to the surface. The surface is simulated ...

  • 4th-Order Gradient Contributions in Extended Thomas-Fermi Theory for Noninteracting Fermions at Finite Temperature 

    GELDART, DJW, and E. SOMMER. 1985. "4th-Order Gradient Contributions in Extended Thomas-Fermi Theory for Noninteracting Fermions at Finite Temperature." Physical Review B 32(12): 7694-7702. Copyright © 2002 American Physical Society.
    No abstract available.

  • Coefficients to O (Epsilon-3) for the Mixed Fixed-Point of the Nm-Component Field Model 

    DEBELL, K., and DJW GELDART. 1985. "Coefficients to O (Epsilon-3) for the Mixed Fixed-Point of the Nm-Component Field Model." Physical Review B 32(7): 4763-4765. Copyright © 1985 American Physical Society.
    No abstract available.