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http://hdl.handle.net/2445/10661| Title: | Spin-phonon avalanches in Mn-12 acetate |
| Author: | Barco, Enrique del, 1968- Hernández Ferràs, Joan Manel Sales i Pardo, Marta Tejada Palacios, Javier Chudnovsky, Eugene M., 1948- Broto, Jean-Marc Rakoto, H. |
| Keywords: | Materials magnètics Relaxació magnètica Propietats magnètiques Spin (Física nuclear) Magnetic materials Magnetic relaxation Spin (Nuclear physics) Magnetic properties |
| Issue Date: | 1999 |
| Publisher: | The American Physical Society |
| Abstract: | We report experimental studies and suggest a quantitative model of spin relaxation in Mn12 acetate in a pulsed magnetic field in the temperature range 1.95.0 K. When the field applied along the anisotropy axis is swept at 140 T/s through a nonmagnetized Mn12 acetate sample, the samples magnetization switches, within a few milliseconds, from zero to saturation at a well-defined field whose value depends on temperature but is quantized in units of 0.46 T. A quantitative explanation of the effect is given in terms of a spin-phonon avalanche combined with thermally assisted resonant spin tunneling. |
| Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.60.11898 |
| It is part of: | Physical Review B, 1999, vol. 60, núm. 17, p. 11898-11901 |
| URI: | http://hdl.handle.net/2445/10661 |
| Related resource: | http://dx.doi.org/10.1103/PhysRevB.60.11898 |
| ISSN: | 0163-1829 |
| Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 143191.pdf | 72.9 kB | Adobe PDF | View/Open |
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