title: Partially disordered antiferromagnetic phase in Ca(3)CoRhO(6).
abstract: Neutron diffraction experiments are reported on Ca(3)CoRhO(6) which consists of ferromagnetic Ising spin chains on a triangular lattice. It was first confirmed from temperature dependence of the (110) peak intensity that Ca(3)CoRhO(6) realizes a partially disordered antiferromagnetic state, where 2/3 of the ferromagnetic chains order antiferromagnetically with each other and the remaining 1/3 are left incoherent with the other chains. The 1/3 incoherent ferromagnetic Ising chains freeze to maintain a disordered state at lower temperatures. This compound is successfully discussed as a candidate of a nonequilibrium one-dimensional Ising model.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Niitaka
authors.forename: K
authors.initials: K
authors.lastname: Yoshimura
authors.forename: K
authors.initials: K
authors.lastname: Kosuge
authors.forename: M
authors.initials: M
authors.lastname: Nishi
authors.forename: K
authors.initials: K
authors.lastname: Kakurai