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1.
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Lattice sites of implanted Na in GaN and AlN in comparison to other light alkalis and alkaline earths
/ Wahl, Ulrich (Universidade de Lisboa (PT)) ; David Bosne, Eric (Universidade de Lisboa (PT)) ; Amorim, Lígia (KU Leuven) ; Granadeiro Costa, Angelo Rafael (Universidade de Lisboa (PT)) ; De Vries, Bart (KU Leuven) ; Martins Correia, Joao (Universidade de Lisboa (PT)) ; da Silva, Manuel Ribeiro (CICECO Aveiro) ; Da Costa Pereira, Lino Miguel (KU Leuven (BE)) ; Vantomme, André (KU Leuven)
/IS634 Collaboration
The lattice location of ion implanted radioactive 24Na (t1/2=14.96 h) in GaN and AlN was determined using the emission channeling technique at the ISOLDE/CERN facility. In the room temperature as-implanted state in both GaN and AlN, the majority of the sodium atoms are found on interstitial sites near the octahedral position, with a minority on cation Ga or Al substitutional sites. [...]
CERN-ISOLDE-2021-003.-
2020 - 12 p.
- Published in : J. Appl. Phys. 128 (2020) 045703
Postprint: PDF; Supplemental Material: PDF;
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2.
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Quantum colour centers in diamond studied by emission channeling with short-lived isotopes (EC-SLI) and radiotracer photoluminescence
/ Pereira, Lino (KU Leuven, Quantum Solid State Physics (QSP), Belgium) ; Wahl, Ulrich (Instituto Superior Técnico, Universidade de Lisboa, Portugal) ; Correia, João Guilherme (Instituto Superior Técnico, Universidade de Lisboa, Portugal) ; Costa, Ângelo (CERN-TE, Geneva, Switzerland) ; David Bosne, Eric (Instituto Superior Técnico, Universidade de Lisboa, Portugal) ; Lima, Tiago (KU Leuven, Quantum Solid State Physics (QSP), Belgium) ; Moens, Janni (KU Leuven, Quantum Solid State Physics (QSP), Belgium) ; da Silva, Manuel (CICECO- Instituto de Materiais de Aveiro, Universidade de Aveiro, Portugal) ; Tunhuma, Malven (KU Leuven, Quantum Solid State Physics (QSP), Belgium) ; Vantomme, André (KU Leuven, Quantum Solid State Physics (QSP), Belgium) et al.
CERN-INTC-2020-037 ; INTC-P-562.
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2020.
Fulltext
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Lattice location of implanted transition metals in 3C–SiC
/ Granadeiro Costa, Angelo Rafael (Universidade de Lisboa (PT)) ; Wahl, Ulrich (Universidade de Lisboa (PT)) ; Martins Correia, Joao (Universidade de Lisboa (PT)) ; David Bosne, Eric (Universidade de Lisboa (PT)) ; Amorim, Lígia (KU Leuven (BE)) ; Silva, Daniel (Universidade do Porto (PT)) ; Castro Ribeiro Da Silva, Manuel (Universidade de Lisboa (PT)) ; Bharuth-Ram, Krishanlal (University of Kwazulu - Natal (ZA)) ; Da Costa Pereira, Lino Miguel (KU Leuven (BE))
/EC-SLI Collaboration
We have investigated the lattice location of implanted transition metal (TM) 56Mn, 59Fe and 65Ni ions in undoped single-crystalline cubic 3C–SiC by means of the emission channeling technique using radioactive isotopes produced at the CERN-ISOLDE facility. We find that in the room temperature as-implanted state, most Mn, Fe and Ni atoms occupy carbon-coordinated tetrahedral interstitial sites (TC). [...]
CERN-OPEN-2017-022.-
Lisboa : Instituto Superior Técnico, 2017 - 11 p.
- Published in : J. Phys. D 50 (2017) 215101
Preprint: PDF;
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4.
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Lattice location of Mg in GaN: a fresh look at doping limitations
/ EC-SLI Collaboration
Radioactive 27Mg (t1/2=9.5 min) was implanted into GaN of different doping types at CERN’s ISOLDE facility and its lattice site determined via beta− emission channeling. Following implantations between room temperature and 800°C, the majority of 27Mg occupies the substitutional Ga sites, however, below 350°C significant fractions were also found on interstitial positions ~0.6 Å from ideal octahedral sites. [...]
CERN-OPEN-2017-005.-
Lisboa, Portugal : Lisbon, IST, 2017 - 5 p.
- Published in : Phys. Rev. Lett. 118 (2017) 095501
Preprint: PDF;
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6.
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Emission channeling with short-lived isotopes (EC-SLI) of acceptor dopants in nitride semiconductors
/ Wahl, Ulrich (C2TN, Instituto Superior Técnico) ; Augustyns, Valérie (IKS, KU Leuven) ; Correia, João Guilherme (C2TN, Instituto Superior Técnico) ; Costa, Ângelo (C2TN, Instituto Superior Técnico) ; David Bosne, Eric (C2TN, Instituto Superior Técnico) ; Lima, Tiago (IKS, KU Leuven) ; Lippertz, Gertjan (IKS, KU Leuven) ; Pereira, Lino (IKS, KU Leuven) ; da Silva, Manuel (CFNUL, Universidade de Lisboa) ; Temst, Kristiaan (IKS, KU Leuven) et al.
CERN-INTC-2017-003 ; INTC-P-489.
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2017.
Fulltext
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Drawing the geometry of 3d transition metal-boron pairs in silicon from electron emission channeling experiments
/ Silva, Daniel (Porto U.) ; Wahl, Ulrich (Lisbon, IST) ; Martins Correia, Joao (Lisbon, IST) ; Augustyns, Valerie (Leuven U.) ; De Lemos Lima, Tiago Abel (Leuven U.) ; Granadeiro Costa, Angelo Rafael (Lisbon, IST) ; David Bosne, Eric (Lisbon, IST) ; Castro Ribeiro Da Silva, Manuel (Lisbon U.) ; Esteves De Araujo, Araujo Joao Pedro (Porto U.) ; Da Costa Pereira, Lino Miguel (Leuven U.)
/EC-SLI Collaboration
Although the formation of transition metal-boron pairs is currently well established in silicon processing, the geometry of these complexes is still not completely understood. We investigated the lattice location of the transition metals manganese, iron, cobalt and nickel in n- and p+-type silicon by means of electron emission channeling. [...]
CERN-OPEN-2017-004.-
Leuven, Belgium : Leuven U., 2016 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 371 (2016) 59-62
Fulltext: PDF;
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8.
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Emission channeling lattice location experiments with short-lived isotopes
/ Wahl, Ulrich (Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Sacavém, Portugal) ; Amorim, Lígia Marina (Instituut voor Kern- en Stralingsfysica (IKS), KU Leuven, Belgium) ; Araújo, João Pedro (Departamento de Física, Universidade do Porto, Portugal) ; Augustyns, Valérie (Instituut voor Kern- en Stralingsfysica (IKS), KU Leuven, Belgium) ; Bharuth-Ram, Krish (University of KwaZulu Natal, Durban, South Africa) ; David-Bosne, Eric (Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Sacavém, Portugal) ; Correia, João Guilherme (Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Sacavém, Portugal) ; Costa, Ângelo (Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Sacavém, Portugal) ; Miranda, Pedro (Departamento de Física, Universidad de Chile, Santiago, Chile) ; Pereira, Lino Miguel da Costa (Instituut voor Kern- en Stralingsfysica (IKS), KU Leuven, Belgium) et al.
CERN-INTC-2014-001 ; INTC-P-218-ADD-2.
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2014.
Fulltext - Original Document (INTC-P-218)
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Lattice location and thermal stability of implanted nickel in silicon studied by on-line emission channeling
/ Silva, Daniel José (Porto U.) ; Wahl, Ulrich (IST/ITN, Lisbon) ; Correia, Joaõ Guilherme (IST/ITN, Lisbon) ; Pereira, Lino Miguel da Costa (Leuven U.) ; Amorim, Lígia Marina (Leuven U.) ; da Silva, Manuel Ribeiro (Lisbon U., CFNUL) ; David-Bosne, Eric (IST/ITN, Lisbon ; Aveiro U.) ; Araújo, João Pedro (Porto U.)
/EC-SLI Collaboration
We have studied the lattice location of implanted nickel in silicon, for different doping types (n, n$^{+}$ and p$^{+}$). By means of on-line emission channeling, $^{65}$Ni was identified on three different sites of the diamond lattice: ideal substitutional sites, displaced bond-center towards substitutional sites (near-BC) and displaced tetrahedral interstitial towards anti-bonding sites (near-T). [...]
CERN-OPEN-2014-018.-
Porto, Portugal : Porto U., 2013 - 10 p.
- Published in : J. Appl. Phys. 115 (2013) 023504
Preprint: PDF;
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10.
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Minority anion substitution by Ni in ZnO
/ Pereira, Lino Miguel da Costa (Leuven U.) ; Wahl, Ulrich (IST/ITN, Lisbon) ; Correia, João Guilherme (IST/ITN, Lisbon) ; Amorim, Lígia Marina (Leuven U.) ; Silva, Daniel José (Porto U.) ; David-Bosne, Eric (IST/ITN, Lisbon ; Aveiro U.) ; Decoster, Stefan (Leuven U.) ; da Silva, Manuel Ribeiro (Lisbon U., CFNUL) ; Temst, Kristiaan (Leuven U.) ; Vantomme, André (Leuven U.)
/EC-SLI Collaboration
We report on the lattice location of implanted Ni in ZnO using the $\beta$− emission channeling technique. In addition to the majority substituting for the cation (Zn), a significant fraction of the Ni atoms occupy anion (O) sites. [...]
CERN-OPEN-2014-011.-
Leuven : Instituut voor Kern- en Stralingsfysica, KU Leuven, 2013 - 4 p.
- Published in : Appl. Phys. Lett. 103 (2013) 091905
Preprint: PDF;
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