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Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO
In search for dilute magnetic semiconductors, the magnetic properties at the atomic-scale of Fe atoms incorporated in ZnO, in a concentration range of more than five orders of magnitude from $1 × 10^{−5}$ to 2.2 at% have been probed using emission 57 Fe Mössbauer spectroscopy on implanted $^{...
Autores principales: | , , , , , , , , , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2015
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1002/aelm.201400039 http://cds.cern.ch/record/2269073 |
_version_ | 1780954727238860800 |
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author | Mantovan, Roberto Gunnlaugsson, Haraldur Páll Johnston, Karl Masenda, Hilary Mølholt, Torben Esmann Naidoo, Deena Ncube, Mehluli Shayestehaminzadeh, Seyedmohammad Bharuth-Ram, Krish Fanciulli, Marco Gislason, Haflidi Petur Langouche, Guido Ólafsson, Sveinn Pereira, Lino M C Wahl, Ulrich Torelli, Piero Weyer, Gerd |
author_facet | Mantovan, Roberto Gunnlaugsson, Haraldur Páll Johnston, Karl Masenda, Hilary Mølholt, Torben Esmann Naidoo, Deena Ncube, Mehluli Shayestehaminzadeh, Seyedmohammad Bharuth-Ram, Krish Fanciulli, Marco Gislason, Haflidi Petur Langouche, Guido Ólafsson, Sveinn Pereira, Lino M C Wahl, Ulrich Torelli, Piero Weyer, Gerd |
author_sort | Mantovan, Roberto |
collection | CERN |
description | In search for dilute magnetic semiconductors, the magnetic properties at the atomic-scale of Fe atoms incorporated in ZnO, in a concentration range of more than five orders of magnitude from $1 × 10^{−5}$ to 2.2 at% have been probed using emission 57 Fe Mössbauer spectroscopy on implanted $^{57}Mn$ and $^{57}Co$ produced at ISOLDE/CERN. In the ultra-dilute regime ($10 ^{−5}$ at%), the system shows isolated paramagnetic $Fe^{3+}$ ions with a spin–lattice type of relaxation. At higher concentrations (between 0.02 and 0.2 at%) a transition to spin–spin type of relaxation between neighboring $Fe^{3+}$ is observed, without any signature of magnetic ordering up to 2.2 at%. Despite the many reports of dilute magnetism in 3 d -doped ZnO, this atomic level study shows no evidence of any long-range magnetic ordering between isolated Fe atoms incorporated in the ZnO lattice. |
id | oai-inspirehep.net-1604845 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2015 |
record_format | invenio |
spelling | oai-inspirehep.net-16048452019-09-30T06:29:59Zdoi:10.1002/aelm.201400039http://cds.cern.ch/record/2269073engMantovan, RobertoGunnlaugsson, Haraldur PállJohnston, KarlMasenda, HilaryMølholt, Torben EsmannNaidoo, DeenaNcube, MehluliShayestehaminzadeh, SeyedmohammadBharuth-Ram, KrishFanciulli, MarcoGislason, Haflidi PeturLangouche, GuidoÓlafsson, SveinnPereira, Lino M CWahl, UlrichTorelli, PieroWeyer, GerdAtomic-Scale Magnetic Properties of Truly 3d-Diluted ZnOCondensed MatterIn search for dilute magnetic semiconductors, the magnetic properties at the atomic-scale of Fe atoms incorporated in ZnO, in a concentration range of more than five orders of magnitude from $1 × 10^{−5}$ to 2.2 at% have been probed using emission 57 Fe Mössbauer spectroscopy on implanted $^{57}Mn$ and $^{57}Co$ produced at ISOLDE/CERN. In the ultra-dilute regime ($10 ^{−5}$ at%), the system shows isolated paramagnetic $Fe^{3+}$ ions with a spin–lattice type of relaxation. At higher concentrations (between 0.02 and 0.2 at%) a transition to spin–spin type of relaxation between neighboring $Fe^{3+}$ is observed, without any signature of magnetic ordering up to 2.2 at%. Despite the many reports of dilute magnetism in 3 d -doped ZnO, this atomic level study shows no evidence of any long-range magnetic ordering between isolated Fe atoms incorporated in the ZnO lattice.oai:inspirehep.net:16048452015 |
spellingShingle | Condensed Matter Mantovan, Roberto Gunnlaugsson, Haraldur Páll Johnston, Karl Masenda, Hilary Mølholt, Torben Esmann Naidoo, Deena Ncube, Mehluli Shayestehaminzadeh, Seyedmohammad Bharuth-Ram, Krish Fanciulli, Marco Gislason, Haflidi Petur Langouche, Guido Ólafsson, Sveinn Pereira, Lino M C Wahl, Ulrich Torelli, Piero Weyer, Gerd Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO |
title | Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO |
title_full | Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO |
title_fullStr | Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO |
title_full_unstemmed | Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO |
title_short | Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO |
title_sort | atomic-scale magnetic properties of truly 3d-diluted zno |
topic | Condensed Matter |
url | https://dx.doi.org/10.1002/aelm.201400039 http://cds.cern.ch/record/2269073 |
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