The Electric Field Gradient in Cu-Ag Dilute Alloy

抄録

When a small amount of silver is added to the copper metal, there appears electric field gradient at copper atom sites surrounding silver atoms. We have calculated the electric field gradient arising from the redistribution of conduction electrons which are scattered by the displaced copper atoms. The present result explains reasonably the observation by Redfield. A distinctive feature of our result is that the electron charge density shows a cubic anisotropy having the well-known oscillatory behavior with distances from each impurity atom.