Investigation into thorium sulfate as a spinless crystal for a high-performance solid-state $^{229}Th$ nuclear clock

The $^{229}Th$ isotope has a laser-accessible nuclear transition allowing the construction of a solid-state nuclear clock. Solid-state $^{229}Th$ nuclear clock development has focused on $^{229}Th$-doped $CaF_2$ and other metal fluorides as the solid material. However, the accuracy of any fluoride-b