Pulsed field studies of the magnetization reversal in molecular nanomagnets

Details Pulsed field studies of the magnetization reversal in molecular nanomagnets Pulsed field studies of the magnetization reversal in molecular nanomagnets

2004-04-02

arxiv.org/abs/cond-mat/0404041v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.70.220401

We report experimental studies of crystals of Mn12 molecular magnetic clusters in pulsed magnetic fields with sweep rates up to 4x10^3 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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