Please use this identifier to cite or link to this item:
https://hdl.handle.net/10321/2965
DC Field | Value | Language |
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dc.contributor.author | Masenda, Hilary | en_US |
dc.contributor.author | Naidoo, D. | en_US |
dc.contributor.author | Gunnlaugsson, H. P. | en_US |
dc.contributor.author | Johnston, K. | en_US |
dc.contributor.author | Mantovan, R. | en_US |
dc.contributor.author | Mølholt, Torben Esmann | en_US |
dc.contributor.author | Ncube, M. | en_US |
dc.contributor.author | Shayestehaminzadeh, S. | en_US |
dc.contributor.author | Gíslason, H. P. | en_US |
dc.contributor.author | Langouche, G. | en_US |
dc.contributor.author | Ólafsson, S. | en_US |
dc.contributor.author | Weyer, G. | en_US |
dc.contributor.author | Bharuth-Ram, Krish | en_US |
dc.date.accessioned | 2018-05-16T06:58:07Z | - |
dc.date.available | 2018-05-16T06:58:07Z | - |
dc.date.issued | 2015-11 | - |
dc.identifier.citation | Masenda, H. et al. 2016. Lattice sites, charge states and spin–lattice relaxation of Fe ions in 57Mn+ implanted GaN and AlN. Journal of Magnetism and Magnetic Materials. 104: 1130-1138. https://doi.org/10.1016/j.jmmm.2015.11.026. | en_US |
dc.identifier.issn | 0304-8853 | - |
dc.identifier.uri | http://hdl.handle.net/10321/2965 | - |
dc.description.abstract | The lattice sites, valence states, resulting magnetic behaviour and spin–lattice relaxation of Fe ions in GaN and AlN were investigated by emission Mössbauer spectroscopy following the implantation of radioactive 57Mn+ ions at ISOLDE/CERN. Angle dependent measurements performed at room temperature on the 14.4 keV γ-rays from the 57Fe Mössbauer state (populated from the 57Mn β− decay) reveal that the majority of the Fe ions are in the 2+ valence state nearly substituting the Ga and Al cations, and/or associated with vacancy type defects. Emission Mössbauer spectroscopy experiments conducted over a temperature range of 100–800 K show the presence of magnetically split sextets in the “wings” of the spectra for both materials. The temperature dependence of the sextets relates these spectral features to paramagnetic Fe3+ with rather slow spin–lattice relaxation rates which follow a T2 temperature dependence characteristic of a two-phonon Raman process. | en_US |
dc.format.extent | 8 p | en_US |
dc.language.iso | en | en_US |
dc.publisher | North-Holland Publishing | en_US |
dc.relation.ispartof | Journal of magnetism and magnetic materials | en_US |
dc.subject | GaN | en_US |
dc.subject | AIN | en_US |
dc.subject | Mn | en_US |
dc.subject | Ion implantation | en_US |
dc.subject | Emission Mössbauer spectroscopy | en_US |
dc.subject | Paramagnetism | en_US |
dc.title | Lattice sites, charge states and spin–lattice relaxation of Fe ions in 57Mn+ implanted GaN and AlN | en_US |
dc.type | Article | en_US |
dc.publisher.uri | https://www.sciencedirect.com/science/article/pii/S0304885315307976?via%3Dihub | en_US |
dc.dut-rims.pubnum | DUT-005795 | en_US |
dc.description.availability | Copyright: 2015. SAGE Publications. Due to copyright restrictions, only the abstract is available. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Journal of Magnetism and Magnetic Materials. Vol 401, Pages 1130-1138. https://doi.org/10.1016/j.jmmm.2015.11.026 | en_US |
dc.identifier.doi | https://doi.org/10.1016/j.jmmm.2015.11.026 | - |
item.openairetype | Article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.fulltext | No Fulltext | - |
Appears in Collections: | Research Publications (Applied Sciences) |
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