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Observation of spin-lattice relaxations of dilute Fe3+ in MgO by Mössbauer spectroscopy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mølholt, T. E. Mantovan, Roberto Gunnlaugsson, Haraldur Pall Naidoo, D. Ólafsson, S. Bharuth-Ram, Krish Fanciulli, Mauro Johnston, Karl Kobayashi, Yuha Langouche, Guido Masenda, Hilary Sielemann, R. Weyer, Gerd Gíslason, H. P. |
| Copyright Year | 2010 |
| Abstract | We present a method to describe the temperature dependence of emission Mössbauer spectra showing slow spin-lattice relaxations of Fe3 + in MgO single crystals, obtained after implantation of 57Mn at ISOLDE/CERN. The analysis is based on the Blume-Tjon model for the line-shape of relaxing paramagnetic sextets with the spin relaxation rate, τ − 1 as a parameter. The temperature dependent spin relaxation rate of Fe3 + in MgO is found to increase to ~108 s − 1 at 647 K by assuming a relaxation rate of τ − 1 < 106 s − 1 at 77 K. The results are in accordance with those obtained by electron paramagnetic resonance spectroscopy demonstrating the possibility of retrieving spin-lattice relaxation rates of dilute Fe3 + from emission Mössbauer spectroscopy of Mn/Fe-implanted oxides. |
| Starting Page | 89 |
| Ending Page | 94 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s10751-010-0214-3 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/s10751-010-0214-3 |
| Alternate Webpage(s) | https://doi.org/10.1007/s10751-010-0214-3 |
| Volume Number | 197 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
