Neutron diffraction studies of liquid silver and liquid Ag-Ge alloys

Bellissent, Marie-Claire; Desré, P.; Bellissent, R.; Tourand, G.

doi:10.1051/jphys:0197600370120143700

Cited by 21 publications

(8 citation statements)

References 12 publications

(14 reference statements)

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“…In this respect, it has already been found from the density functional based generalized pseudopotential theory that the effective sp-electron valence lies [5-7] within the range 1.1 to 1.7, where this non-integral number is mostly due to sp-d hybridization effects [5-7, 22, 23].The structure of the liquid noble metals has been studied at several temperatures by Waseda [24] using X-ray (XR) diffraction methods. Neutron diffraction has been also used in the case of Cu at two temperatures [25] and Ag near melting [26]. As concerns their thermophysical properties, the situation is different in the case of l-Cu and l-Ag on the one hand, and l-Au on the other hand.…”

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confidence: 99%

Orbital free ab initio molecular dynamics simulation study of some static and dynamic properties of liquid noble metals

Bhuiyan¹,

González²,

González³

2012

Condens. Matter Phys.

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Several static and dynamic properties of liquid Cu, Ag and Au at thermodynamic states near their respective melting points, have been evaluated by means of the orbital free ab-initio molecular dynamics simulation method. The calculated static structure shows good agreement with the available X-ray and neutron diffraction data. As for the dynamic properties, the calculated dynamic structure factors point to the existence of collective density excitations along with a positive dispersion for l-Cu and l-Ag. Several transport coefficients have been obtained which show a reasonable agreement with the available experimental data.

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confidence: 99%

Orbital free ab initio molecular dynamics simulation study of some static and dynamic properties of liquid noble metals

Bhuiyan¹,

González²,

González³

2012

Condens. Matter Phys.

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“…Likewise, minimizing the free energy gives also too small a temperature dependence on a and on the resistivity temperature coefficient. However, a variation of R, with temperature could also contribute to change the resistivity-versus-temperature curve as has been emphasized by Bellissent et al [26] who have deduced R,(T) for gallium, by using their experimental structure factor and the experimental resistivity of Pokorny and Astrom [21].…”

Section: Resultsmentioning

confidence: 97%

Temperature Dependence of the Liquid Tin Resistivity

Gasser¹,

Bretonnet²,

Bruson

1985

Physica Status Solidi (b)

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The temperature dependence law of the liquid metal resistivity is usually attributed to that of the atomic structure. I n the framework of the Percus-Yevick approximation applied to hard spheres, various laws of temperature dependence of their diameter are used. They are deduced from different physical or thermodynamical properties (self-diffusion, structure, entropy, isothermal compressibility) or by minimizing the free energy. A comparison with experimental measurements on liquid tin up to 1300 "C leads to a fairly good agreement.La dependance en temperature de la rbsistivitb des metaux liquides est d'habitude attribuee B celle de la structure atomique. Dans le cadre de l'approximation de Percus-Yevick appliqube aux spheres dures, differentes lois de dbpendance en temperature de leur diametre ont bt6 employbes. Elles ont BtB obtenues lt partir de diverses propribtbs physiques ou thermodynamiques (autodiffusion, structure, entropie, compressibilith isotherme) ou par minimalisation de l'hnergie libre. La comparaison avec nos mesmes sur l'htain liquide jusqu'lt 1300 "C est discutee e t rbvele nn accord globalement satisfaisant.

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“…3 the pair-correlation data for Fe at 1600 "C are presented [14], where the notation is the same as in the preceding figures. Here the E-S and J-W potentials both overestimate the first maxima and give values for the positions of the other maxima and minima which are slightly shifted in relation to the data.…”

Section: Calculationsmentioning

confidence: 99%

Liquid Metal Pair‐Correlation Functions from Empirical Pair Potentials

McGurn¹,

Esterling²

1981

Physica Status Solidi (b)

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The pair-correlation functions of liquid Fe, Cu, Ag, Au, and V are calculated from empirically determined potentials obtained from the solid state of these substances. The calculations use Percus-Yevick theory, and comparison is made between the results using the empirical potentials obtained by Esterling-Swaroop and those of Johnson and Wilson. Reasonable agreement with the experimentally determined pair-correlation functions is obtained for Fe, Cu, and Ag with both sets of potentials. However, the results for Au and V with the Esterling-Swaroop potentials are not satisfactory. It is noted independent evidence suggests that the pair potential approximation is inadequate for these two metals. In addition, the pair-correlation function serves as a discriminator between two pair potentials for iron derived from the same phonon data.

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Neutron diffraction studies of liquid silver and liquid Ag-Ge alloys

Abstract: Résumé. 2014 On the basis of the thermodynamic properties, the

Cited by 21 publications

References 12 publications

Orbital free ab initio molecular dynamics simulation study of some static and dynamic properties of liquid noble metals

Orbital free ab initio molecular dynamics simulation study of some static and dynamic properties of liquid noble metals

Temperature Dependence of the Liquid Tin Resistivity

Liquid Metal Pair‐Correlation Functions from Empirical Pair Potentials

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