We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Muon diffusion in nanocrystalline copper.
- Authors
Soetratmo, M.; Natte, H.; Hempelmann, R.; Hartmann, O.; Wäppling, R.; Ekström, M.
- Abstract
A systematic μSR study on nano Cu has demonstrated that the diffusion of μ+ in nanocrystalline metals is influenced by both features of the nanostructure, i.e., by the very small grain size and by the comparatively large fraction of grain boundaries. The former feature yields a size effect of the phonon assisted muon tunneling, but only at particle diameters below 20 nm. The latter feature, in samples with crystallite sizes above 20 nm diameter, i.e., with bulk diffusional behaviour, establishes a connection between μ+ diffusion coefficient and particle size: if one of these quantities is known, the other could be evaluated.
- Publication
Hyperfine Interactions, 1997, Vol 105, Issue 1-4, p245
- ISSN
0304-3843
- Publication type
Article
- DOI
10.1023/A:1012607506083