Ultra-fast spin avalanches in crystals of molecular magnets in terms of magnetic detonation

Abstract

Recent experiments (Decelle et al., Phys. Rev. Lett. 102, 027203 (2009)) discovered an ultra-fast regime of spin avalanches in crystals of magnetic magnets, which was three orders of magnitude faster than the traditionally studied magnetic deflagration. The new regime has been hypothetically identified as magnetic detonation. Here we demonstrate the possibility of magnetic detonation in the crystals, as a front consisting of a leading shock and a zone of Zeeman energy release. We study the dependence of the magnetic detonation parameters on the applied magnetic field. We find that the magnetic detonation speed only slightly exceeds the sound speed in agreement with the experimental observations.

4 pages, 4 figures

References in corpus (3)

• Theory of magnetic deflagration
• Phonon-Induced Quantum Magnetic Deflagration in Mn12
• Magneto-optical imaging of magnetic deflagration in Mn12-Acetate

Cited by in corpus (12)

• Influence of gas compression on flame acceleration in the early stage of burning in tubes
• Gas compression moderates flame acceleration in deflagration-to-detonation transition
• Dynamic behavior of magnetic avalanches in the spin-ice compound Dy${}_2$Ti${}_2$O${}_7$
• Onset of a Propagating Self-Sustained Spin Reversal Front in a Magnetic System
• Quantum deflagration and supersonic fronts of tunneling in molecular magnets
• Turbulent fronts of quantum detonation in molecular magnets
• Anisotropic properties of spin avalanches in crystals of nanomagnets
• Multidimensional instability and dynamics of spin-avalanches in crystals of nanomagnets
• Partial spin reversal in magnetic deflagration
• Quantum avalanche in the Fe${}_8$ Molecular-Magnet
• Magnetic avalanches in granular ferromagnets: Thermal activated collective behavior
• Counterpart of the Darrieus-Landau instability at a magnetic deflagration front