Summary
The results of a previous paper about the radial density, the time-dependent radial density and the scattering function for monoatomic liquids are compared with experimental material. An empirical analysis of the atomic motion is also presented which seems to show that the vacancies in the quasi-crystalline structure of the liquid should have an important role in the atomic motion.
Riassunto
I risultati di uno studio precedente riguardanti la densità radiale, la densità radiale dipendente dal tempo e la funzione di scattering per liquidi monoatomici, vengono confrontati con dati sperimentali relativi all’argon, neon ed elio liquidi. Si fa un tentativo di analizzare empiricamente il moto atomico nel caso dell’argon, servendosi dei risultati dell’esperimento numerico di Rahman. Da questo sembra emergere che i posti vacanti nella struttura quasicristallina del liquido hanno una parte importante nel moto degli atomi.
Реэюме
Реэультаты предыдушей статьи, касаюшиеся радиальной плотности, временной эависимости радиальной плотности и функции рассеяния для моноатомных жидкостей сравниваются с зкспериментальными реэультатами. Также приводится змпирический аналиэ движения атомов, который, кажется, покаэывает, что вакансии в кваэи-кристалличе ской структуре жидкости должны играть важную роль в движении атомов.
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References
S. Franchetti:Nuovo Cimento,55 B, 335 (1968).
D. G. Henshaw:Phys. Rev.,105, 976 (1957).
An analogous behavior was found byKaplow and co-workers in the case of liquid Pb. SeeG. R. Kaplow, S. L. Strong andB. L. Averbach:Phys. Rev.,138, A 1336 (1965).
D. G. Henshaw:Phys. Rev.,111, 1470 (1958).
D. G. Hurst andD. G. Henshaw:Phys. Rev.,100, 994 (1955).
A. Rahman:Phys. Rev.,136, A 405 (1964).
Hexagonal close-packing withβ=0.23 Å andR 1=4,0 Å to fit Rahman’s static radial density. There are no other adjusted parameters (besidesΔ 2).
One of us (S.F.) is indebted toA. Rahman for kindly supplying some information about this diagram.
G. H. Vineyard:Phys. Rev.,110, 999 (1958), Sect. 3.
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This work was partially supported by the Italian National Research Council (CNR), Physics Comittee.
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Franchetti, S., Mazza, A. On the interpretation of some experimental results on radiation scattering and atomic motion for some noble gases in the liquid state. Nuovo Cimento B (1965-1970) 55, 348–361 (1968). https://doi.org/10.1007/BF02711647
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DOI: https://doi.org/10.1007/BF02711647