2007
DOI: 10.1063/1.2746249
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Many-body interactions and high-pressure equations of state in rare-gas solids

Abstract: The T = 0 K equations of state (EOS) of rare-gas solids (RGS) (He, Ne, Ar, Kr, and Xe) are calculated in the experimentally studied ranges of pressures accounting for two-and three-body interatomic forces. Solid-state corrections to the pure two-body Aziz et al. potentials included the long-range Axilrod-Teller three-body interaction and short-range three-body exchange interaction. The energy-scale and length-scale parameters of the latter were taken as adjustable parameters of theory. The calculated T = 0 K E… Show more

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Cited by 48 publications
(37 citation statements)
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“…Freiman and Tretyak [2] used the Aziz-Slaman pair potential [2] and the Loubeyre three-body model [4,5] and, on this basis, derived the equations of states for cryocrystals of the He-Xe series, which are in excellent agreement with the experiment in the megabar range. The equations of states, volume-dependent elastic moduli, and some other properties can be rather successfully described in terms of the effective pair potential, whereas the deviation from the Cauchy relation (CR) , in principle, cannot be reproduced using the pair potential (see, for example, [6] and references therein).…”
Section: Introductionmentioning
confidence: 80%
“…Freiman and Tretyak [2] used the Aziz-Slaman pair potential [2] and the Loubeyre three-body model [4,5] and, on this basis, derived the equations of states for cryocrystals of the He-Xe series, which are in excellent agreement with the experiment in the megabar range. The equations of states, volume-dependent elastic moduli, and some other properties can be rather successfully described in terms of the effective pair potential, whereas the deviation from the Cauchy relation (CR) , in principle, cannot be reproduced using the pair potential (see, for example, [6] and references therein).…”
Section: Introductionmentioning
confidence: 80%
“…Двухцентровые кулоновские интегралы, входящие в W 3 (13), также были рассчитаны точно на основе таблиц [31]. [12,32,33] в широкой области сжатия до u = 0.8 (R = a √ 2 = 3.5 a.u.). Однако мы видим, что их первые производ-ные значительно отличаются, начиная со сжатий u ≈ 0.6, соответствующих давлению p ≈ 30 GPa.…”
Section: неэмпирический трехчастичный короткодействующий потенциал отunclassified
“…Для всех кристаллов ряда Ne−Xe расчеты EOS Ви-нета [8] и других авторов [7,12,13], использующие 4 и более экспериментальных параметров, достаточно хо-рошо согласуются с экспериментальными данными (за исключением [45]), особенно для тяжелых КИГ. Ab initio расчеты DFT−LDA [16] также близки к эксперименту (несколько ниже) для всех КИГ в широком интервале давления.…”
Section: рисunclassified
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