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The Local Exploration of Magnetic Field Effects in Semiconductors
/ Dang, Thien Thanh (Duisburg-Essen U.) ; Schell, Juliana (Duisburg-Essen U. ; CERN) ; Beck, Reinhard (Bonn U.) ; Noll, Cornelia (Bonn U.) ; Lupascu, Doru C (Duisburg-Essen U.)
This study reports on the local exploration of magnetic field effects in semiconductors, including silicon (Si), germanium (Ge), gallium arsenide (GaAs), and indium phosphide (InP) using the time differential perturbed angular correlation (TDPAC) technique. TDPAC measurements were carried out under external magnetic fields with strengths of 0.48 T and 2.1 T at room temperature, and 77 K following the implantation of 111In (111Cd) probes. [...]
2022 - 11 p.
- Published in : Crystals 12 (2022) 560
Fulltext: PDF;
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Probing structural transitions in M(II) vanadates (M = Zn, Mn, Cd, Ca) with TDPAC spectroscopy
/ Burimova, Anastasia (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Carbonari, Artur Wilson (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Heiniger-Schell, Juliana (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland; Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany) ; Leite Neto, Osmar Flavio da Silveira (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Saxena, Rajendra Narain (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Sales, Tatiane da Silva Nascimento (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Genezini, Frederico Antonio (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Pereira, Luciano Fabricio Dias (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Ribeiro Junior, Ibere Souza (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) ; Correa, Bruno Santos (Instituto de Pesquisas Energeticas e Nucleares, IPEN, Sao Paulo, SP, Brazil) et al.
CERN-INTC-2023-023 ; INTC-P-661.
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2023.
Fulltext
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Free Molecule Studies by Perturbed $\gamma - \gamma$ Angular Correlation: A New Path to Accurate Nuclear Quadrupole Moments
/ Haas, Heinz (CERN ; U. Aveiro (main)) ; Röder, Jens (CERN ; U. Aveiro (main)) ; Correia, Joao G (CERN ; IST, Lisbon (main)) ; Schell, J (CERN ; U. Duisburg-Essen) ; Fenta, Abel S (U. Aveiro (main)) ; Vianden, Reiner (Bonn U., HISKP) ; Larsen, Emil M H (U. Copenhagen (main)) ; Aggelund, Patrick A (U. Copenhagen (main)) ; Fromsejer, Rasmus (U. Copenhagen (main)) ; Hemmingsen, Lars B S (U. Copenhagen (main)) et al.
Accurate nuclear quadrupole moment values are essential as benchmarks for nuclear structure models
and for the interpretation of experimentally determined nuclear quadrupole interactions in terms of
electronic and molecular structure. Here, we present a novel route to such data by combining perturbed γ-γ
angular correlation measurements on free small linear molecules, realized for the first time within this
work, with state-of-the-art ab initio electronic structure calculations of the electric field gradient at the
probe site. [...]
2021 - 6 p.
- Published in : Phys. Rev. Lett. 126 (2021) 103001
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Tracer diffusion and PAC measurements of 111mCd tracer atoms in A3B compounds
/ Divinski, Sergiy (Institute of Materials Physics, University of Münster, Germany) ; Gaertner, Daniel (Institute of Materials Physics, University of Münster, Germany) ; Collins, Gary (Pullman Professor of Physics, Washington State University (WSU), Pullman, WA, USA) ; Zacate, Matthew (Physics and Geology Department, Northern Kentucky University Highland Heights, KY, USA) ; Schell, Juliana (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE)) ; Johnston, Karl (European Organization for Nuclear Research (CERN), CH-1211 Geneva, Switzerland) ; Dang, Thien Thanh (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE)) ; Lupascu, Doru C (Institute for Materials Science and Center for Nanointegration Duisburg-Essen (CENIDE)) ; Hickel, T (Department of Computational Materials Design, Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany and BAM Bundesanstalt für Materialforschung und -Prüfung, Richard-Willstätter-Str. 11, 12489 Berlin, Germany)
CERN-INTC-2022-014 ; INTC-P-626.
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2022.
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Strong magnetoelectric coupling at an atomic nonmagnetic electromagnetic probe in bismuth ferrite
/ Schell, Juliana (CERN ; Duisburg-Essen U.) ; Schmuck, Merlin (Duisburg-Essen U.) ; Efe, İpek (Zurich, ETH) ; Dang, Thien Thanh (Duisburg-Essen U.) ; Gonçalves, João Nuno (Aveiro U.) ; Lewin, Daniil (Duisburg-Essen U.) ; Castillo, Marianela Escobar (Duisburg-Essen U.) ; Shvartsman, Vladimir V (Duisburg-Essen U.) ; Costa, Ângelo Rafael Granadeiro (CERN ; Lisbon, IST) ; Köster, Ulli (Laue-Langevin Inst.) et al.
Isolated nonmagnetic substitutional defect ions experience huge coupled electric magnetic interaction in the single-phase multiferroic BiFeO$_{3}$. In the ferroelectric state above the magnetic Néel temperature $T$$_{N}$, the electric environment generates a single symmetric electric field gradient (EFG) parallel to the electric polarization direction. [...]
2022 - 13 p.
- Published in : Phys. Rev. B 105 (2022) 094102
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The peculiarities of reduction and doping of vanadium oxides probed by TDPAC spectroscopy at ISOLDE
/ Carbonari, Artur Wilson (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Saxena, Rajendra Narain (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Burimova, Anastasia (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Pereira, Luciano Fabricio Dias (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Sales, Tatiane da Silva Nascimento (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Leite Neto, Osmar Flávio da Silveira (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Genezini, Frederico Antonio (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Ribeiro Junior, Iberê Souza (Instituto de Pesquisas Energéticas e Nucleares. IPEN, São Paulo, SP, Brazil) ; Bosch-Santos, Brianna (Material Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA) ; Correa, Eduardo Lima (Material Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA) et al.
CERN-INTC-2020-031 ; INTC-P-532-ADD-1.
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2020.
Fulltext - Original Document (INTC-P-532)
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Dynamic quadrupole interactions in semiconductors
/ Dang, Thien Thanh (Bonn U., HISKP) ; Schell, Juliana (CERN ; U. Duisburg-Essen) ; Lupascu, Doru C (Duisburg U. ; U. Duisburg-Essen) ; Vianden, Reiner (Bonn U., HISKP)
The time differential perturbed angular correlation, TDPAC, technique has been used for several decades to study electric quadrupole hyperfine interactions in semiconductors such as dynamic quadrupole interactions (DQI) resulting from after-effects of the nuclear decay as well as static quadrupole interactions originating from static defects around the probe nuclei such as interstitial ions, stresses in the crystalline structure, and impurities. Nowadays, the quality of the available semiconductor materials is much better, allowing us to study purely dynamic interactions. [...]
2018 - 9 p.
- Published in : J. Appl. Phys. 123 (2018) 165109-1 - 165109-9
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