Transport in Dilute Alloys

Abstract

<p>In essence this work is a study of transport properties of dilute alkali alloy systems and the numerical methods used to study them. The first chapter deals with the theory of lattice dynamics and the methods, based on this theory, of calculating phonon frequency distributions. These distributions are subsequently used to determine properties of alkali alloy systems.</p> <p>Chapter II examines the use of the Ashcroft pseudopotential. Different types of screening are considered and the effects of adding many body corrections are examined.</p> <p>A study of alkali alloy systems is undertaken in the third part of the work. Impurity theory is considered and calculations are undertaken for several alkali dilute alloy systems. Finally the results of the impurity calculations are examined for deviations from Matthiesen's rule.</p>