Tuning Magnetic Avalanches in Mn12-ac

Abstract

Using micron-sized Hall sensor arrays to obtain time-resolved measurements of the local magnetization, we report a systematic study in the molecular magnet Mn${}_{12}$-acetate of magnetic avalanches controllably triggered in different fixed external magnetic fields and for different values of the initial magnetization. The speeds of propagation of the spin-reversal fronts are in good overall agreement with the theory of magnetic deflagration of Garanin and Chudnovsky \cite{Garanin}.

8 pages, 7 figures; discussion expanded and revised

References in corpus (12)

• Butterfly hysteresis loop and dissipative spin reversal in the S=1/2, V15 molecular complex
• Low energy magnetic excitations of the Mn_{12}-acetate spin cluster observed by neutron scattering
• Propagation of Avalanches in Mn${}_{12}$-acetate: Magnetic Deflagration
• Quantum Magnetic Deflagration in Mn12 Acetate
• Theory of magnetic deflagration
• Magnetization dynamics in the single-molecule magnet Fe8 under pulsed microwave irradiation
• Experimental determination of the dipolar field in Mn12-acetate
• Radiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet
• Photon-Induced Magnetization Changes in Single-Molecule Magnets
• Magnetization relaxation in the single molecule magnet Ni${}_4$ under continuous microwave irradiation
• Energy Level Lifetimes in the Single-Molecule Magnet Fe_8 : Experiments and Simulations
• Local Measurements of Magnetization in Mn12 Crystals

Cited by in corpus (6)

• Quantum deflagration and supersonic fronts of tunneling in molecular magnets
• Turbulent fronts of quantum detonation in molecular magnets
• Anisotropic magnetic deflagration in single crystals of Gd5Ge4
• Multidimensional instability and dynamics of spin-avalanches in crystals of nanomagnets
• Partial spin reversal in magnetic deflagration
• Multilevel model for magnetic deflagration in nanomagnet crystals