Magnetization and spin dynamics of a Cr-based magnetic cluster: Cr$_{7}$Ni

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dc.creatorBianchi, A.
dc.creatorCarretta, S.
dc.creatorSantini, P.
dc.creatorAmoretti, G.
dc.creatorFurukawa, Y.
dc.creatorKiuchi, K.
dc.creatorAjiro, Y.
dc.creatorNarumi, Y.
dc.creatorKindo, K.
dc.creatorLago, J.
dc.creatorMicotti, E.
dc.creatorArosio, P.
dc.creatorLascialfari, A.
dc.creatorBorsa, F.
dc.creatorTimco, G.
dc.creatorWinpenny, R. E. P.
dc.date2008-08-19
dc.date.accessioned2026-07-07T09:57:21Z
dc.date.available2026-07-07T09:57:21Z
dc.descriptionWe study the magnetization and the spin dynamics of the Cr$_7$Ni ring-shaped magnetic cluster. Measurements of the magnetization at high pulsed fields and low temperature are compared to calculations and show that the spin Hamiltonian approach provides a good description of Cr$_7$Ni magnetic molecule. In addition, the phonon-induced relaxation dynamics of molecular observables has been investigated. By assuming the spin-phonon coupling to take place through the modulation of the local crystal fields, it is possible to evaluate the decay of fluctuations of two generic molecular observables. The nuclear spin-lattice relaxation rate $1/T_1$ directly probes such fluctuations, and allows to determine the magnetoelastic coupling strength.
dc.description3 pages, 2 figures, submitted as a contributed article for the Jems conference in Dublin (September 14-19 2008)
dc.identifierhttps://arxiv.org/abs/0808.2621
dc.identifierhttp://arxiv.org/abs/0808.2621
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167313
dc.subjectMaterials Science
dc.titleMagnetization and spin dynamics of a Cr-based magnetic cluster: Cr$_{7}$Ni
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