2 Description of the Experiments

The measurements described in this thesis were made using standard muon spin rotation/relaxation ($\mu {\cal SR}$) techniques with minor modifications. In the first section of this chapter, the general technique will be reviewed briefly, with reference to the many more detailed technical reviews. In the next subsection, the practical problems posed by these air-sensitive powdered materials (i.e. sample mounting, handling and storage) and their resolutions will be discussed. The final section is a brief account of the synthesis of alkali intercalated fullerides.