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
TL;DR
This study investigates how thermal coupling affects spin avalanches in Mn12-acetate, revealing that weaker thermal coupling leads to lower avalanche trigger fields and associating temperature rises with magnetostatic energy changes.
Contribution
It provides new insights into the role of thermal coupling in spin avalanche dynamics in Mn12-acetate through synchronized magnetization and temperature measurements.
Findings
Lower avalanche trigger fields with weaker thermal coupling
Temperature rise at zero magnetic field linked to magnetostatic energy change
Synchronized measurements reveal thermal effects on spin avalanches
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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