Frustrated $J_1-J_2$ Diamond Lattice Antiferromagnet Co${}_2$Ti${}_3$O${}_8$ with a Vacancy-ordered Spinel Structure Synthesized via a Topochemical Reaction

Rio Kumeda, Yuya Haraguchi, Daisuke Nishio-Hamane +3

Metastable Co${}_2$Ti${}_3$O${}_8$ was synthesized through a topochemical reaction using Li${}_2$CoTi${}_3$O${}_8$ as the precursor, resulting in a vacancy-ordered spinel structure. Crystal st…