Influence of thermal coupling on spin avalanches in Mn12 -acetate
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.
- Publication:
-
Physical Review B
- Pub Date:
- July 2007
- DOI:
- arXiv:
- arXiv:cond-mat/0609586
- Bibcode:
- 2007PhRvB..76a2403W
- Keywords:
-
- 75.20.-g;
- 75.45.+j;
- 75.50.Xx;
- 75.60.Ej;
- Diamagnetism paramagnetism and superparamagnetism;
- Macroscopic quantum phenomena in magnetic systems;
- Molecular magnets;
- Magnetization curves hysteresis Barkhausen and related effects;
- Condensed Matter - Other
- E-Print:
- 7 pages, 4 figures