journal article

Journal Article

Physics of Plasmas. 2000, 7(11), p. 4506-4514

Molecular dynamics evaluation of self-diffusion in Yukawa systems

American Institute of Physics Inc.

English

2000-11

https://doi.org/10.1063/1.1316084

H. Ohta and S. Hamaguchi, Physics of Plasmas 7, 4506 (2000) https://doi.org/10.1063/1.1316084

Self-diffusion coefficients of Yukawa systems in the fluid phase are obtained from molecular dynamics simulations in a wide range of the thermodynamical parameters. The Yukawa system is a collection of particles interacting through Yukawa (i.e., screened Coulomb) potentials, which may serve as a model for charged dust particles in a plasma or colloidal particles in electrolytes. The self-diffusion coefficients are found to follow a simple scaling law with respect to the system temperature, which is consistent with the universal scaling (i.e., temperature scaling independent of the ratio of interparticle distance to screening length) observed by Robbins et al. [J. Chem. Phys. 88, 3286 (1988)] if the fluid system is near solidification. Also discussed is the velocity autocorrelation function, which is in part used to determine the self-diffusion coefficients through the Green-Kubo formula. © 2000 American Institute of Physics.

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Plasmas 7, 4506 (2000) and may be found at https://doi.org/10.1063/1.1316084.

78496

Molecular dynamics evaluation of self-diffusion in Yukawa systems

American Institute of Physics Inc.

English

2000-11

Physics of Plasmas

7

11

4506

4514

https://doi.org/10.1063/1.1316084

https://hdl.handle.net/11094/78496