Diffusion and Trapping of Positive Muons in Al: Cu Alloys and in Deformed Al

Abstract
Depolarization of μ+ particles implanted into quenched alloys of 0.042, 0.13, and 0.42 at.% Cu in Al shows peaks in the temperature dependence which are attributed to trapping of the muons by various metastable Cu impurity complexes, and provides evidence that positive muons can be used to study impurity correlations in metals.