|
1.
|
|
|
2.
|
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
Fulltext: PDF;
|
|
|
3.
|
Magnesium-Vacancy Optical Centers in Diamond
/ Corte, Emilio ; Andrini, Greta ; Nieto Hernández, Elena ; Pugliese, Vanna ; Costa, Ângelo ; Magchiels, Goele ; Moens, Janni ; Tunhuma, Shandirai Malven ; Villarreal, Renan ; Pereira, Lino M. C. et al.
We provide the first systematic characterization of the structural and photoluminescence properties of optically active centers fabricated upon implantation of 30–100 keV Mg+ ions in synthetic diamond. The structural configurations of Mg-related defects were studied by the electron emission channeling technique for short-lived, radioactive 27Mg implantations at the CERN-ISOLDE facility, performed both at room temperature and 800 °C, which allowed the identification of a major fraction of Mg atoms (∼30 to 42%) in sites which are compatible with the split-vacancy structure of the MgV complex. [...]
- Published in : ACS Photonics 10 (2023) 101-110
Fulltext: MgV_SupportingInformation - PDF; ACSPhotonics_2023_10_0101 - PDF;
|
|
|
4.
|
Observation of the radiative decay of the ${}^{229}\mathrm{Th}$ nuclear clock isomer
/ Kraemer, Sandro (Leuven U. ; LMU Munich (main)) ; Moens, Janni (Leuven U.) ; Athanasakis-Kaklamanakis, Michail (Leuven U. ; CERN) ; Bara, Silvia (Leuven U.) ; Beeks, Kjeld (Vienna, Tech. U., Atominst.) ; Chhetri, Premaditya (Leuven U.) ; Chrysalidis, Katerina (CERN) ; Claessens, Arno (Leuven U.) ; Cocolios, Thomas E. (Leuven U.) ; Correia, João G.M. (Lisbon U.) et al.
The nucleus of the radioisotope thorium-229 (${}^{229}$Th) features an isomer with an exceptionally low excitation energy that enables direct laser manipulation of nuclear states. For this reason, it is a leading candidate for use in next-generation optical clocks. [...]
arXiv:2209.10276.-
2023-05-24 - 15 p.
- Published in : Nature 617 (2023) 706–710
Fulltext: PDF;
|
|
|
5.
|
|
|
6.
|
Atomic-Scale Magnetic Properties of Truly 3d-Diluted ZnO
/ Mantovan, Roberto (IMM-CNR, Agrate Brianza,Italy) ; Gunnlaugsson, Haraldur Páll (Leuven U. ; Aarhus U.) ; Johnston, Karl (CERN) ; Masenda, Hilary (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Mølholt, Torben Esmann (Iceland U.) ; Naidoo, Deena (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Ncube, Mehluli (U. Witwatersrand, Johannesburg, Sch. Phys.) ; Shayestehaminzadeh, Seyedmohammad (Iceland U.) ; Bharuth-Ram, Krish (DUT, Durban ; iThemba LABS) ; Fanciulli, Marco (IMM-CNR, Agrate Brianza,Italy ; Milan Bicocca U.) et al.
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. [...]
2015
- Published in : Advanced Electronic Materials 1 (2015) 1400039
|
|
|
7.
|
|
|
Unraveling the local structure of topological crystalline insulators using hyperfine interactions
/ Pereira, Lino M C (KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium) ; Springholz, Gunther (Institut fur Halbleiter und Festkorperphysik, Johannes Kepler Universitat, 4040 Linz, Austria) ; Schell, Juliana (CERN, PH Div, CH-1211 Geneve 23, Switzerland, and Technische Physik, Universitat des Saarlandes, 66041 Saarbrucken, Germany) ; Correia, João Guilherme (Centro de Ciencias e Tecnologias Nucleares, Instituto Superior Tecnico, Universidade de Lisboa, 2686-953, Sacavem, Portugal) ; Gunnlaugsson, Haraldur P (CERN, PH Div, CH-1211 Geneve 23, Switzerland, and KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium) ; Molholt, Torben E (CERN, PH Div, CH-1211 Geneve 23, Switzerland) ; Cottenier, Stefaan (Center for Molecular Modeling, Ghent University, 9000 Gent, Belgium) ; Deicher, Manfred (Technische Physik, Universitat des Saarlandes, 66041 Saarbrucken, Germany) ; Augustyns, Valerie (KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium) ; Lima, Tiago A L (KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium) et al.
CERN-INTC-2016-005 ; INTC-P-455.
-
2016.
Fulltext
|
|
alert email
lub zaprenumeruj 
RSS feed.