Diffusion, reorientation and small magnetic fields studied by ?SR

Up to a few years ago, muon spin rotation/relaxation (μSR [muonSR]) was used as a complementary technique in the study of magnetic intermetallic materials. Application of μSR [muonSR], however, covers a much wider range of scientific disciplines. A shift in scientific interest within the department away from metallic magnets, focused attention on possible alternative deployment of μSR [muonSR] within other scientific domains in the department. Exploratory studies provided more insight into these applications and their possibilities to obtain unique and/or complementary information on properties of interest. Consequently, the compounds studied here were selected from three existing research projects. Firstly we have monitored the lithium diffusion in the battery cathode material Lix[Mn1-yLiy]O4. Secondly, in order to obtain information on the dynamics of metallocenes encapsulated in zeolite supercages, both the dynamics of muonated ferrocene molecules and the encapsulated version have been studied. Finally, we made an attempt to find additional evidence for small magnetic moments on nano scale palladium clusters. The μSR [muonSR] techniques used will be introduced, together with the corresponding objectives. The results are presented and discussed in thesis entitled "Diffusion, reorientation and small magnetic fields,studied by μSR [muonSR]".Interfaculty Reactor Institut