Ignition and Propagation of Magnetic Avalanches in Mn$_{12}$-Acetate: the effect of quantum tunneling

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dc.creatorMcHugh, S.
dc.creatorJaafar, R.
dc.creatorSarachik, M. P.
dc.creatorMyasoedov, Y.
dc.creatorFinkler, A.
dc.creatorShtrikman, H.
dc.creatorZeldov, E.
dc.creatorBagai, R.
dc.creatorChristou, G.
dc.date2007-08-01
dc.date2007-09-10
dc.date.accessioned2026-07-07T08:28:06Z
dc.date.available2026-07-07T08:28:06Z
dc.descriptionUsing a wire heater to ignite magnetic avalanches in fixed magnetic field applied along the easy axis of single crystals of the molecular magnet Mn$_{12}$-acetate, we report fast local measurements of the temperature and time-resolved measurements of the local magnetization as a function of magnetic field. In addition to confirming maxima in the velocity of propagation, we find that avalanches trigger at a threshold temperature which exhibits pronounced minima at resonant magnetic fields, demonstrating that thermally assisted quantum tunneling plays an important role in the ignition as well as the propagation of magnetic avalanches in molecular magnets.
dc.description4 pages, 5 figures; modified claims
dc.identifierhttps://arxiv.org/abs/0708.0222
dc.identifierhttp://arxiv.org/abs/0708.0222
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137495
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleIgnition and Propagation of Magnetic Avalanches in Mn$_{12}$-Acetate: the effect of quantum tunneling
dc.typetext

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