Influence of thermal coupling on spin avalanches in Mn12-acetate
C. H. Webster, O. Kazakova, J. C. Gallop, P. W. Josephs-Franks, A. Hernandez-Minguez, A. Ya. Tzalenchuk
Abstract
The effect of thermal coupling on spin avalanches in Mn12-acetate has been probed using a single crystal assembly. Time-resolved, synchronized measurements of magnetization and temperature are reported. Unusually low avalanche trigger fields occur when thermal coupling to the bath is weak. A temperature rise observed at zero magnetic field is attributed to a change in magnetostatic energy.
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