Pulsed-field studies of the magnetization reversal in molecular nanomagnets

We report experimental studies of crystals of Mn12 molecular magnetic clusters in pulsed magnetic fields with sweep rates up to 410^3 T/s . The steps in the magnetization curve are observed at fields that are shifted with respect to the resonant field values. The shift systematically increases as th...

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Detalles Bibliográficos
Autores: Vanacken, J., Stroobants, S., Malfait, M., Moshchalkov, V. V., Jordi, M., Tejada Palacios, Javier, Amigo, R., Chudnovsky, Eugene M., 1948-, Garanin, D. A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2004
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/10925
Acceso en línea:https://hdl.handle.net/2445/10925
Access Level:acceso abierto
Palabra clave:Materials nanoestructurats
Propietats magnètiques
Magnetic properties
Nanostructured materials
Descripción
Sumario:We report experimental studies of crystals of Mn12 molecular magnetic clusters in pulsed magnetic fields with sweep rates up to 410^3 T/s . The steps in the magnetization curve are observed at fields that are shifted with respect to the resonant field values. The shift systematically increases as the rate of the field sweep goes up. These data are consistent with the theory of the collective dipolar relaxation in molecular magnets.

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