title: Two stage magnetic ordering and spin idle behavior of the coordination polymer Co3(OH)2(C4O4)2·3H2O determined using neutron diffraction.
abstract: We report the magnetic structure of two of the magnetically ordered phases of Co(3)(OH)(2)(C(4)O(4))(2)·3H(2)O, a coordination polymer that consists of a triangular framework decorated with anisotropic Co(II) ions. The combination of neutron diffraction experiments and magnetic susceptibility data allows us to identify one phase as displaying spin idle behavior, where only a fraction of the moments order at intermediate temperatures, while at the lowest temperatures the system orders fully. This novel magnetic behavior is discussed within the framework of a simple Hamiltonian and representational analysis and rationalizes this multiphase behavior by considering the combination of frustration and anisotropy.
authors.affiliation: Forschungsneutronenquelle Heinz Maier Leibnitz (FRM II), Technische Universität München, Lichetenbergstrasse 1, 85747 Garching, Germany.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Mole
authors.forename: John A
authors.initials: JA
authors.lastname: Stride
authors.forename: Paul F
authors.initials: PF
authors.lastname: Henry
authors.forename: Markus
authors.initials: M
authors.lastname: Hoelzel
authors.forename: Anatoliy
authors.initials: A
authors.lastname: Senyshyn
authors.forename: Antonio
authors.initials: A
authors.lastname: Alberola
authors.forename: Carlos J
authors.initials: CJ
authors.lastname: Gómez Garcia
authors.forename: Paul R
authors.initials: PR
authors.lastname: Raithby
authors.forename: Paul T
authors.initials: PT
authors.lastname: Wood