title: Orbital and Spin Chains in ZnV2O4.
abstract: Our powder inelastic neutron scattering data indicate that ZnV2O4 is a system of spin chains that are three-dimensionally tangled in the cubic phase above 50 K due to randomly occupied t(2g) orbitals of V3+ (3d(2)) ions. Below 50 K in the tetragonal phase, the chains become straight due to antiferro-orbital ordering. This is evidenced by the characteristic wave vector dependence of the magnetic structure factor that changes from symmetric to asymmetric at the cubic-to-tetragonal transition.
authors.affiliation: NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
authors.forename: S-H
authors.initials: SH
authors.lastname: Lee
authors.forename: D
authors.initials: D
authors.lastname: Louca
authors.forename: H
authors.initials: H
authors.lastname: Ueda
authors.forename: S
authors.initials: S
authors.lastname: Park
authors.forename: T J
authors.initials: TJ
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Isobe
authors.forename: Y
authors.initials: Y
authors.lastname: Ueda
authors.forename: S
authors.initials: S
authors.lastname: Rosenkranz
authors.forename: P
authors.initials: P
authors.lastname: Zschack
authors.forename: J
authors.initials: J
authors.lastname: Iñiguez
authors.forename: Y
authors.initials: Y
authors.lastname: Qiu
authors.forename: R
authors.initials: R
authors.lastname: Osborn