Nuclear hyperfine techniques in the study of transuranium materials

Nuclear hyperfine spectroscopy was successfully employed to gain information on the electronic structural properties of transuranium materials. The techniques discussed are Mossbauer spectroscopy (MS), perturbed angular correlations (PAC), and muon spin rotation (μSR) spectroscopy. A brief overview of the merits of the three methods and of the physical parameters that can be extracted will be given. The technique most used to date is MS in the realm of neptunium and its compounds. Electronic structural properties, and in particular their volume dependence, are discussed for various cubic systems of neptunium intermetallic compounds. This is followed by a short summary of MS in other transuranium materials. Tin this paper the rather singular PAC and μSR experiments performed to date is presented