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  • 1
    Electronic Resource
    Electronic Resource
    Electron theory of long-wavelength concentration fluctuations in liquid metal alloys (1989)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 1509-1514 
    Details
    ISSN: 0392-6737
    Keywords: Statistical theories of liquid structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary It is shown that long-wavelength concentration fluctuations in a binary liquid metal alloy are determined by a pair interchange free energyw, which is exactly given by the sum of an elastic strain term and of the concentration-concentration direct correlation function. The latter is evaluated in an alloy of homovalent components by electron screening theory in the pseudopotential approach of Shaw and Harrison and shown to be entirely determined by nonlocal terms reflecting charge transfer to the more electronegative alloy component. Numerical calculations for the liquid Na−K alloy show strong cancellation between the two contributions tow at all concentrations, in qualitative agreement with experiment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02450510
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Longitudinal viscosity of liquid alkali metals (1992)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 14 (1992), S. 559-562 
    Details
    ISSN: 0392-6737
    Keywords: Kinetic and transport theory ; Classical, semiclassical, and quantum theories of liquid structure ; Acoustical properties of liquids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The viscosity coefficient entering sound wave attenuation is evaluated for the liquid alkali metals in an ion-electron plasma approach. It is shown that the contribution from electrical conduction, though small, is by no means negligible. The calculated longitudinal viscosity is very close to the measured shear viscosity contribution, the bulk viscosity being expected to be small in the present approach.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457045
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effective interactions between concentration fluctuations and charge transfer in chemically ordering liquid alloys (1993)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 15 (1993), S. 393-398 
    Details
    ISSN: 0392-6737
    Keywords: Statistical theories of liquid structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The correlations between long-wavelength fluctuations of concentration in a liquid binary alloy are determined by a balance between an elastic-strain free energy and an Ornstein-Zernike effective interaction. The latter is extracted from thermodynamic data in the case of the Li−Pb system, which is well known to chemically order with stoichiometric composition corresponding to Li4Pb. Strong attractive interactions between concentration fluctuations near the composition of chemical ordering originate from electronic charge transfer, which is estimated from the electron-ion partial structure factors as functions of composition in the liquid alloy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02456921
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Linear-response theory for partly quenched systems (1994)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 16 (1994), S. 169-175 
    Details
    ISSN: 0392-6737
    Keywords: Statistical theories of liquid structure ; Flows through porous media ; filtration ; seepage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The matrix of linear density response functions is constructed within density functional theory for a monatomic fluid adsorbed in a quenched material. The structural Ornstein-Zernike relations obtained by Given and Stell with the replica method are regained in the appropriate limit. The usefulness of the present reformulation of their theory is illustrated by deriving from it the free-energy functional and the structural closure relations in the hypernetted-chain approximation. The extension to dynamical properties of partly quenched systems is indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02451699
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Electron theory of long-wavelength concentration fluctuations in liquid metal alloys (1989)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 11 (1989), S. 1863-1863 
    Details
    ISSN: 0392-6737
    Keywords: Statistical theories of liquid structure ; Errata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02459127
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Decay of correlations and related sum rules in a layered classical plasma (1995)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 17 (1995), S. 155-167 
    Details
    ISSN: 0392-6737
    Keywords: Statistical theories of liquid structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The asymptotic behaviours of particle correlation functions and the related sum rules are discussed for a layered classical plasma withe 2/r interactions in the fluid state, in dependence on the number of layers. These properties derive from consistency conditions imposed by screening on the hierarchical equations, as already treated by A. Alastuey and P. A. Martin (J. Stat. Phys.,39, 405 (1985)) for various Coulomb fluids. The main results concern i) the type of clustering of correlations needed for the validity of multipolar sum rules at various orders, ii) the proof that the pair correlation function in a finite multilayer may carry an electric dipole moment and the calculation of its partioning among the layers, and iii) the dimensionality crossover in an infinitely extended or periodically repeated multiplayer with varying interlayer spacing and wave vector.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02451594
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    Paper (German National Licenses)
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