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RESEARCH PRODUCT
Magnetic excitations in polyoxometalate tetrameric clusters
Hanspeter AndresMichael AebersoldHerma BüttnerJ.m. ClementeJuan J. Borrás-almenarD KearleyEugenio CoronadoHans U. Güdelsubject
PhysicsSpin statesSingle ionCondensed Matter PhysicsInelastic neutron scatteringElectronic Optical and Magnetic MaterialsMagnetic anisotropysymbols.namesakeFerromagnetismPolyoxometalateCluster (physics)symbolsElectrical and Electronic EngineeringAtomic physicsHamiltonian (quantum mechanics)description
Abstract The metal-oxide clusters with formula [M4(D2O)2(PW9O34)2]10− which contain a tetrameric magnetic cluster M4O16 provide an ideal series for the study of magnetic exchange interactions in polymetallic molecular clusters. To get a more direct information on the splitting of the spin states caused by the exchange interactions we have performed inelastic neutron scattering measurements on the Co, Mn and Ni clusters. Magnetic excitations have been observed in the range 0.5–6 meV. A tentative interpretation of these data from a Heisenberg exchange Hamiltonian and a single ion zero-field splitting is presented for Ni cluster.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-06-01 | Physica B: Condensed Matter |