Nuclear magnetic relaxation measurements have been utilized for a systematic study of the dynamical magnetic behavior of U 5f moments in UP, U3P4, UCu5 and UAl2. In spite of the marked difference in the static properties, all these compounds show, at higher temperatures, a strongly T-dependent, large relaxation rate of the 5f moment, which is found to be comparable to, or even greater than, the thermal energy kBT. These results suggest both strong hybridization between 5f and conduction electrons and the dominance of single-site dynamics in the U moment relaxation in these compounds.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering