Conduction electron spin disorientation at the surfaces of copper and silver

Results of the measurements of the residual conduction electron spin resonance linewidth in copper foils and silver foils and films are presented. From these results the probabilities of spin disorientation, epsilon , at the sample surface of both copper and silver are determined. For copper foils the value obtained is epsilon =(3.4+or-0.2)*10 -4 whilst for silver foils and films it is found that epsilon =(4.6+or-0.2)*10 -4 and epsilon =(5.9+or-0.6)*10 -4 respectively. All these values fall substantially below those predicted from simple theory based on spin-orbit coupling. It is indicated that a reconsideration of previous epsilon interpretations is necessary.