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http://hdl.handle.net/2445/133448
Title: | Propagation of Magnetic Avalanches in Mn12Ac at High Field Sweep Rates |
Author: | Decelle, W. Vanacken, J. Moshchalkov, V. V. Tejada Palacios, Javier Hernández Ferràs, Joan Manel Macià Bros, Ferran |
Keywords: | Física de partícules Camps magnètics Particle physics Magnetic fields |
Issue Date: | 2009 |
Publisher: | American Physical Society |
Abstract: | Time-resolved measurements of the magnetization reversal in single crystals of Mn 12 Ac in pulsed magnetic fields, at magnetic field sweep rates from 1.5 kT / s up to 7 kT / s , suggest a new process that cannot be scaled onto a deflagrationlike propagation driven by heat diffusion. The sweep rate dependence of the propagation velocity, increasing from a few 100 m / s up to the speed of sound in Mn 12 Ac , indicates the existence of two new regimes at the highest sweep rates, with a transition around 4 kT / s that can be understood as a magnetic deflagration-to-detonation transition. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.102.027203 |
It is part of: | Physical Review Letters, 2009, vol. 102, num. 2, p. 027203 |
URI: | http://hdl.handle.net/2445/133448 |
Related resource: | https://doi.org/10.1103/PhysRevLett.102.027203 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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621286.pdf | 1.17 MB | Adobe PDF | View/Open |
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