Magnetic Susceptibilities of Uranium (IV) and Plutonium (IV) Ions in Cubic Fields

Publisher Website
Google Scholar
Abstract
The magnetic susceptibilities of (a) [(CH3)4N]2PuCl6, (b) [(CH3)4N]2UCl6, (c) Cs2UCl6, of solid solutions of (d) PuO2 in ThO2, and of (e) [(CH3)4N]2PuCl6 in [(CH3)4N]2PtCl6 have been measured at room temperature, the boiling point of liquid N2 and the boiling point of liquid He. The measurements of others on (f) solid solution of UO2 in ThO2 are also considered. It has been found that (a), (e), and (f) show strongly temperature‐dependent susceptibilities whereas (b), (c), and (d) have susceptibilities that vary only slightly with temperature over the range investigated. The results are discussed in terms of ground state configurations f2 and f4 perturbed by the crystal fields.