Indirect magnetic interaction mediated by spin dimer in Cu${}_2$Fe${}_2$Ge${}_4$O${}_{13}$

T. Masuda, K. Kakurai, M. Matsuda +2

Cu${}_2$Fe${}_2$Ge${}_4$O${}_{13}$ is a bicomponent compound that consists of Cu dimers and Fe chains with separate energy scale. By inelastic neutron scattering technique with high-energy…