Evidence for multimagnon-mediated nuclear spin relaxation in the intertwining double-cain ferrimagnet $C{a}_{3}C{u}_3(P{O}_4{)}_4$

Shoji Yamamoto, Hiromitsu Hori, Yuji Furukawa +6

The nuclear spin-lattice relaxation time $T_1$ of ${}^{31}P$ nuclei in the title compound is measured for the first time and interpreted in terms of a modified spin-wave theory. We e…