Hostname: page-component-8448b6f56d-qsmjn Total loading time: 0 Render date: 2024-04-19T22:33:40.394Z Has data issue: false hasContentIssue false

Thermodynamics of the System Ag2se-Ag2s: A Molecular Dynamics Study

Published online by Cambridge University Press:  21 February 2011

A. Smith
Affiliation:
Department of Physics, University of Texas, El Paso, TX 79968
R. Ravelo
Affiliation:
Department of Physics, University of Texas, El Paso, TX 79968
N. Pingitore
Affiliation:
Department of Geological Sciences, University of Texas, El Paso, TX 79968
Get access

Abstract

We report on Molecular Dynamics (MD) studies of free energy and vibrational entropy differences of the binary system Ag2Se-Ag2S as function of temperature. We have employed the methods of adiabatic switching and temperature integration over a reversible path to obtain the phase diagram. We discuss the nature of the entropy difference in terms of ion mobility and previous MD calculations of diffusion rates in these systems.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Sadanaga, R. and Sueno, S., Mineral. J. 5, 124 (1967)Google Scholar
2 Wiegers, G. A., Am. Min. 56, 1882 (1971)Google Scholar
3 Rino, J. P., Hornos, Y. M. M., Antonio, G. A., Ebbsjô, I., Kalia, R. K. and Vashishta, P., J. Chem. Phys. 89, 7542 (1988)Google Scholar
4 Ray, J. R. and Vashishta, P., J. Chem. Phys. 90, 6580 (1989)Google Scholar
5 Pingitore, N. E., Ponce, B. F. and Estrada, L., J. Mater. Res. 8, 1 (1993)Google Scholar
6 Vashishta, P., Ebbsjö, I., Dejus, R. and Skôld, K., J. Phys. C 18, L291 (1985)Google Scholar
7 Kirkwood, J. G., J. Chem. Phys. 3, 300 (1935)Google Scholar
8 Watanabe, M. and Reinhardt, W. P., Phys. Rev. Letters, 65, 3301 (1990)Google Scholar
9 Holian, B.L., Posch, H.A. and Hoover, W.G., Phys. Rev. E 47, 3852 (1993)Google Scholar
10 Mills, K. C., Thermodynamic data for inorganic Sulfides, Selenides, and Tellurides, (Butter-worth & co (Publishers) LTD, 1974), p. 734.Google Scholar
11 Sagua, A. E. and Schmidt, J. A., Materials Chem. Phys. 32, 235 (1992)Google Scholar
12 Gronvold, F. and Westrum, E. F., J. Chem. Thermodynamics 18, 381 (1986)Google Scholar