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Challenging muon diffusion studies in F.C.C. metals

Muon diffusion studies have been performed in the fcc metals Pt, Pd and Pb. The muons start to diffuse above 100 K in Pt, while they appear to be mobile at all temperatures down to 15 K in Pd. The data on Pb suggest mobility above T = 30 K. These new data extend the range of fcc metals available for systematic comparisons of muon diffusion.