Numéro
J. Phys. IV France
Volume 01, Numéro C5, Décembre 1991
COLLOQUE WEYL VII
International Conference on METALS IN SOLUTION
Page(s) C5-169 - C5-184
DOI http://dx.doi.org/10.1051/jp4:1991521
COLLOQUE WEYL VII
International Conference on METALS IN SOLUTION

J. Phys. IV France 01 (1991) C5-169-C5-184

DOI: 10.1051/jp4:1991521

FLUCTUATIONS AND INTERACTIONS IN THE DILUTE METALLIC STATE

N.W. ASHCROFT

Laboratory of Atomic and Solid State Physics, Cornell University and, Laboratoire d'Etudes des Propriétés Electroniques des Solides, Grenoble, France


Abstract
The addition of metal to a metal-ammonia solution already in the metallic regime can lead to a further reduction in density. This experimental observation can be accounted for by a straightforward evaluation of the dominant volume-dependent and one-body terms contributing to the thermodynamic functions of the metallic state. Augmenting these terms are smaller two-body terms which are important in a structural sense. Because of the exceptionally low electron-densities found in metal-ammonia solutions, it is proposed that these can be significantly changed, in a state-dependent fashion, by inclusion of fluctuation effects.



© EDP Sciences 1991