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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 $^{...

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Autores principales: 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
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1002/aelm.201400039
http://cds.cern.ch/record/2269073
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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.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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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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