Influence of mass difference on dynamic properties of isotope mixtures
| dc.creator | Kiriushcheva, N. | |
| dc.creator | Kuzmin, S. V. | |
| dc.date | 2003-11-12 | |
| dc.date.accessioned | 2026-07-07T02:54:44Z | |
| dc.date.available | 2026-07-07T02:54:44Z | |
| dc.description | We present the results of a Molecular Dynamics computer simulations of a two component isotope mixture of Lennard-Jones particles, monodisperse in size but different in masses, at a fixed average density and temperature. We study changes in properties that result from mass heterogeneity, by measuring the pair distribution function, diffusion coefficient, velocity autocorrelation function, non-Gaussian and isotope effect parameters, as functions of the degree of mass difference. Our results show that if static properties are not influenced by a variation of mass variation, the dynamic properties are significantly affected and even exhibit the presence of ``critical'' values in the mass difference. We also demonstrate that our model gives a simple contra example to a recently proposed a universal scaling law for atomic diffusion in condensed matter [M. Dzugudov, Nature, v.381, 137 (1996)]. | |
| dc.description | 7 pages, 1 table, 11 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0311290 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0311290 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22674 | |
| dc.subject | Condensed Matter | |
| dc.title | Influence of mass difference on dynamic properties of isotope mixtures | |
| dc.type | text |