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Structural formation yield of GeV centers from implanted Ge in diamond
/ Wahl, Ulrich (IST, Lisbon (main)) ; Correia, João Guilherme (IST, Lisbon (main)) ; Costa, Ângelo (Leuven U.) ; Lamelas, Afonso (Aveiro U.) ; Amaral, Vítor (Aveiro U.) ; Johnston, Karl (CERN) ; Magchiels, Goele (Leuven U.) ; Tunhuma, Shandirai Malven (Leuven U.) ; Vantomme, André (Leuven U.) ; Pereira, Lino M C (Leuven U.)
In order to study the structural formation yield of germanium-vacancy (GeV) centers from implanted Ge in diamond, we have investigated its lattice location by using the β$^{−}$ emission channeling technique from the radioactive isotope $^{75}$Ge (t$_{1/2}$ = 83 min) produced at the ISOLDE/CERN facility. $^{75}$Ge was introduced via recoil implantation following 30 keV ion implantation of the precursor isotope $^{75}$Ga (126 s) with fluences around 2 × 10$^{12}$–5 × 10$^{13}$ cm$^{−2}$. [...]
2024 - 16 p.
- Published in : Mat. Quant. Tech. 4 (2024) 025101
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Temperature Dependence of the Hyperfine Magnetic Field at Fe Sites in Ba-Doped BiFeO$_3$ Thin Films Studied by Emission Mössbauer Spectroscopy
/ Heiniger-Schell, Juliana (CERN ; Duisburg-Essen U.) ; Bharuth-Ram, Krish (ENS, Lyon, Lab. Phys. ; KwaZulu Natal U. ; DUT, Durban) ; Naicker, Kimara (ENS, Lyon, Lab. Phys. ; KwaZulu Natal U.) ; Masondo, Vusumuzi (DUT, Durban) ; Dang, Thien Thanh (Duisburg-Essen U.) ; Escobar, Marianela (Duisburg-Essen U.) ; Díaz-Guerra, Carlos (Madrid U.) ; Marschick, Georg (Vienna, Tech. U.) ; Masenda, Hilary (Witwatersrand U.) ; Gunnlaugsson, Haraldur P (Iceland U.) et al.
Emission $^{57}$Fe Mössbauer spectroscopy (eMS), following the implantation of radioactive $^{57}$Mn+ ions, has been used to study the temperature dependence of the hyperfine magnetic field at Fe sites in Ba-doped BiFeO$_3$ (BFO) thin films. $^{57}$Mn β decays (t$_{1/2}$ = 90 s) to the 14.4 keV Mössbauer state of $^{57}$Fe, thus allowing online eMS measurements at a selection of sample temperatures during Mn implantation. [...]
2023 - 13 p.
- Published in : Crystals 13 (2023) 724
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Probing the local environments and optical properties in halide perovskites with short-lived radioactive isotopes
/ Masenda, Hilary (University of the Witwatersrand) ; Borchert, Juliane Anna (Fraunhofer Institute for Solar Energy Systems ISE) ; Deena, Naidoo (University of the Witwatersrand) ; Jakata, Kudakwashe (Diamond Light Source Ltd) ; Johnston, Karl (ISOLDE, CERN) ; Bharuth-Ram, Krish (University of KwaZulu-Natal) ; Gunnlaugsson, Haraldur Páll (University of Iceland) ; Er-Raji, Oussama (Fraunhofer Institute for Solar Energy Systems ISE) ; Gupta, Yashika (Fraunhofer Institute for Solar Energy Systems ISE) ; Mantovan, Roberto (CNR-IMM, Unit of Agrate Brianza) et al.
CERN-INTC-2024-018 ; INTC-P-697.
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2024.
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Anisotropy of the Electric Field Gradient in Two-Dimensional α-MoO$_3$ Investigated by $^{57}$Mn($^{57}$Fe) Emission Mössbauer Spectroscopy
/ Schell, Juliana (CERN ; Duisburg-Essen U.) ; Zyabkin, Dmitry (Ilmenau Tech. U.) ; Bharuth-Ram, Krish (KwaZulu Natal U.) ; Gonçalves, João N (Aveiro U.) ; Díaz-Guerra, Carlos (Madrid U.) ; Gunnlaugsson, Haraldur P (Iceland U.) ; Martín-Luengo, Aitana Tarazaga (Linz U.) ; Schaaf, Peter (Ilmenau Tech. U.) ; Bonanni, Alberta (Linz U.) ; Masenda, Hilary (Witwatersrand U. ; Philipps U. Marburg) et al.
Van der Waals α-MoO3 samples offer a wide range of attractive catalytic, electronic, and optical properties. We present herein an emission Mössbauer spectroscopy (eMS) study of the electric-field gradient (EFG) anisotropy in crystalline free-standing α-MoO3 samples. [...]
2022 - 13 p.
- Published in : Crystals 12 (2022) 942
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Terbium-149 for targeted alpha therapy
/ Grundler, Pascal (Paul Scherrer Institut, Villigen – ETH Zürich, Switzerland) ; Johnston, Karl (CERN, ISOLDE) ; Koester, Ulli (Institut Laue-Langevin, Grenoble, France) ; Mueller, Cristina (Paul Scherrer Institut, Villigen – ETH Zürich, Switzerland) ; Talip, Zeynap (Paul Scherrer Institut, Villigen – ETH Zürich, Switzerland) ; van der Meulen, Nick (Paul Scherrer Institut, Villigen – ETH Zürich, Switzerland)
CERN-INTC-2023-025 ; INTC-P-593-ADD-1.
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2023.
Fulltext - Original Document (INTC-P-593)
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Investigation of Metal Ions Drift in Memristive Devices using Perturbed Angular Correlation (PAC) method
/ Mokhles Gerami, Adeleh (School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), Tehran P.O. Box 19395-5531, Iran) ; Schaaf, Peter (Chair Materials for Electrical Engineering and Electronics, Institute of Materials Science and Engineering, Institute of Micro and Nanotechnologies MacroNano, TU Ilmenau, Gustav-Kirchhoff-Strasse 5, 98693 Ilmenau, Germany) ; Schell, Juliana (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland and Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Blum, Michaela (Chair Materials for Electrical Engineering and Electronics, Institute of Materials Science and Engineering, Institute of Micro and Nanotechnologies MacroNano, TU Ilmenau, Gustav-Kirchhoff-Strasse 5, 98693 Ilmenau, Germany) ; Mohammadi, Bahar (School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), Tehran P.O. Box 19395-5531, Iran) ; Dang, Thien Thanh (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Yap, I C J (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Johnston, Karl (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland) ; Carbonari, A W (Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP, São Paulo 05508-000, Brazil) ; Correa, B S (Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP, São Paulo 05508-000, Brazil) et al.
CERN-INTC-2023-013 ; INTC-I-250.
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2023.
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MULTIPAC-Setup for Perturbed Angular Correlation Experiments in Multiferroic (and Magnetic) Materials: proof-of-concept
/ Schell, Juliana (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland and Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Lupascu, Doru (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Dang, Thien (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Yap, Ian (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Escobar, Marianela (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Schmuck, Merlin (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Haas, Heinz (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland and Department of Physics and CICECO, University of Aveiro, 3810-193 Aveiro, Portugal) ; Johnston, Karl (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland) ; Kowalska, Magdalena (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland) ; Carbonari, Artur (Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP, São Paulo 05508-000, Brazil) et al.
CERN-INTC-2023-012 ; INTC-I-249.
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2023.
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Testing ultra-low energy in new ion implantation chamber ASCII
/ van Stiphout, Koen (II. Physikalisches Institut, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany) ; Hofsäss, Hans (II. Physikalisches Institut, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany) ; Schell, Juliana (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland and Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Lupascu, Doru (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Dang, Thien (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Yap, I (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Escobar, Marianela (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Schaaf, Peter (Department of Materials for Electronics, Institute of Materials Science and Engineering, TU Ilmenau, Gustav-Kirchhoff-Strasse 5, 98693 Ilmenau, Germany) ; Johnston, Karl (European Organization for Nuclear Research (CERN), CH-1211 Geneva) ; Carbonari, Artur (Instituto de Pesquisas Energéticas e Nucleares IPEN-CNEN/SP, São Paulo 05508-000, Brazil) et al.
CERN-INTC-2023-006 ; INTC-I-248.
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2023.
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Coulomb excitation of pear-shaped nuclei
/ Butler, Peter (Liverpool U.) ; Gaffney, Liam (Liverpool U. ; CERN) ; Spagnoletti, Pietro (West Scotland U.) ; Konki, Joonas (CERN) ; Scheck, Marcus (West Scotland U.) ; Smith, John (West Scotland U.) ; Abrahams, Kenzo (Western Cape U.) ; Bowry, Michael (TRIUMF) ; Cederkäll, Joakim (Lund U.) ; Chupp, Timothy (Michigan U.) et al.
There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. [...]
2019 - 5 p.
- Published in : EPJ Web Conf. 223 (2019) 01007
Fulltext: PDF;
In : IV International Conference on Nuclear Structure and Dynamics (NSD2019), Venice, Italy, 13 -17 May 2019, pp.01007
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