4 papers
Magnetic avalanches of minor fast-relaxing species of Mn12-acetate
S. McHugh, R. Jaafar, M. P. Sarachik +5
Using micron-sized thermometers and Hall bars, we report time-resolved studies of the local temperature and local magnetization for two types of magnetic avalanches (abrupt spin re…
Experimental determination of the dipolar field in Mn12-acetate
S. McHugh, R. Jaafar, M. P. Sarachik +5
Crystals of the molecular magnet Mn12-acetate are known to contain a small fraction of low- symmetry (minor) species with a small anisotropy barrier against spin reversal. The lowe…
Ignition and Propagation of Magnetic Avalanches in Mn-Acetate: the effect of quantum tunneling
S. McHugh, R. Jaafar, M. P. Sarachik +6
Using a wire heater to ignite magnetic avalanches in fixed magnetic field applied along the easy axis of single crystals of the molecular magnet Mn-acetate, we report fast l…
Spatial Determination of Magnetic Avalanche Ignition Points
Reem Jaafar, S. McHugh, Yoko Suzuki +6
Using time-resolved measurements of local magnetization in the molecular magnet Mn12-ac, we report studies of the propagation of magnetic avalanches (fast magnetization reversals)…