Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Sveinn Ólafsson"'
Autor:
Juliana Heiniger-Schell, Krish Bharuth-Ram, Kimara Naicker, Vusumuzi Masondo, Thien Thanh Dang, Marianela Escobar, Carlos Díaz-Guerra, Georg Marschick, Hilary Masenda, Haraldur P. Gunnlaugsson, Bingcui Qi, Iraultza Unzueta, Sveinn Ólafsson, Rajdeep Adhikari, Gerrard Peters, Deena Naidoo, Peter Schaaf, Dmitry Zyabkin, Karl Johnston, Sven Becker, Gerhard Jakob
Publikováno v:
Crystals, Vol 13, Iss 5, p 724 (2023)
Emission 57Fe Mössbauer spectroscopy (eMS), following the implantation of radioactive 57Mn+ ions, has been used to study the temperature dependence of the hyperfine magnetic field at Fe sites in Ba-doped BiFeO3 (BFO) thin films. 57Mn β decays (t1/2
Externí odkaz:
https://doaj.org/article/a5c24160b05142e2b199f397f7e4f6e0
Autor:
Torben E. Mølholt, Sveinn Ólafsson, Haraldur P. Gunnlaugsson, Bingcui Qi, Karl Johnston, Roberto Mantovan, Hilary Masenda, Krish Bharuth-Ram, Hafliði P Gíslason, Guido Langouche, Deena Naidoo
Publikováno v:
Crystals, Vol 12, Iss 7, p 961 (2022)
The magnetic properties of the Fe/V superlattices were studied by conventional Conversion Electron Mössbauer Spectroscopy (CEMS) and online 57Fe+ emission Mössbauer Spectroscopy (eMS) at room temperature (RT) at ISOLDE/CERN. The unique depth-enhanc
Externí odkaz:
https://doaj.org/article/5740aa4c393b4e9286f816199e6f64ce
Autor:
Juliana Schell, Dmitry Zyabkin, Krish Bharuth-Ram, João N. Gonçalves, Carlos Díaz-Guerra, Haraldur P. Gunnlaugsson, Aitana Tarazaga Martín-Luengo, Peter Schaaf, Alberta Bonanni, Hilary Masenda, Thien Thanh Dang, Torben E. Mølholt, Sveinn Ólafsson, Iraultza Unzueta, Roberto Mantovan, Karl Johnston, Hafliði P. Gíslason, Petko B. Krastev, Deena Naidoo, Bingcui Qi
Publikováno v:
Crystals, Vol 12, Iss 7, p 942 (2022)
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-standi
Externí odkaz:
https://doaj.org/article/df04a760a38943e5bf402682fc167b61
Autor:
Hilary Masenda, Haraldur Páll Gunnlaugsson, Rajdeep Adhikari, Krish Bharuth-Ram, Deena Naidoo, Aitana Tarazaga Martín-Luengo, Iraultza Unzueta, Roberto Mantovan, Torben Esmann Mølholt, Karl Johnston, Juliana Schell, Adeleh Mokhles Gerami, Petko Krastev, Bingcui Qi, Sveinn Ólafsson, Haflidi Pétur Gíslason, Arthur Ernst, Alberta Bonanni
Publikováno v:
New Journal of Physics, Vol 24, Iss 10, p 103007 (2022)
Charge states and lattice sites of Fe ions in virgin and Mn-doped Al _x Ga _1− _x N samples were investigated using ^57 Fe emission Mössbauer spectroscopy following radioactive ^57 Mn ^+ ion implantation at ISOLDE, CERN. In the undoped Al _x Ga _1
Externí odkaz:
https://doaj.org/article/6f1286987a9b4243bfe24611d0f1c6ea
Autor:
Fatemeh Hanifpour, Camila P. Canales, Emil G. Fridriksson, Arnar Sveinbjörnsson, Tryggvi K. Tryggvason, Jian Yang, Connel Arthur, Sigríður Jónsdóttir, Anna L. Garden, Sveinn Ólafsson, Kristján Leósson, Líney Árnadóttir, Erik Lewin, Younes Abghoui, Árni S. Ingason, Fridrik Magnus, Helga D. Flosadóttir, Egill Skúlason
Publikováno v:
Journal of Catalysis. 413:956-967
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a87eb31c8bf1d6dc41ba47365eb0a669
https://doi.org/10.1016/j.jcat.2022.07.030
https://doi.org/10.1016/j.jcat.2022.07.030
Autor:
Hilary Masenda, Haraldur Páll Gunnlaugsson, Rajdeep Adhikari, Krish Bharuth-Ram, Deena Naidoo, Aitana Tarazaga Martín-Luengo, Iraultza Unzueta, Roberto Mantovan, Torben Esmann Mølholt, Karl Johnston, Juliana Schell, Adeleh Mokhles Gerami, Petko Krastev, Bingcui Qi, Sveinn Ólafsson, Haflidi Pétur Gíslason, Arthur Ernst, Alberta Bonanni
Publikováno v:
New Journal of Physics
Charge states and lattice sites of Fe ions in virgin and Mn-doped Al x Ga1−x N samples were investigated using 57Fe emission Mössbauer spectroscopy following radioactive 57Mn+ ion implantation at ISOLDE, CERN. In the undoped Al x Ga1−x N, Fe2+ o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33964bdfc080c5f1fb1d3eac171e4e80
https://hdl.handle.net/21.11116/0000-000B-79AB-D21.11116/0000-000B-79AD-B
https://hdl.handle.net/21.11116/0000-000B-79AB-D21.11116/0000-000B-79AD-B
Autor:
Iraultza Unzueta, Haraldur Pall Gunnlaugsson, Torben Esmann Mølholt, Hilary Masenda, Adeleh Mokhles Gerami, Petko Krastev, Dmitry V. Zyabkin, Krish Bharuth-Ram, Deena Naidoo, Sveinn Ólafsson, Fernando Plazaola, Juliana Schell, Bingcui Qi, Xupeng Zhao, Jiaxing Xiao, Jianhua Zhao, Roberto Mantovan
Publikováno v:
physica status solidi (b). 259:2200121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e70b5c67b319f98771131b50a3802622
https://doi.org/10.1002/pssb.202200121
https://doi.org/10.1002/pssb.202200121
Autor:
Leif Holmlid, Sveinn Olafsson
Publikováno v:
Heliyon, Vol 5, Iss 6, Pp e01864- (2019)
This work reports identification of muons by their characteristic life-time of 2.20 μs after laser-induction of their precursor mesons, both kaons K± and KL0 and pions π± in ultra-dense hydrogen H(0). The pair-production signal from scattered muo
Externí odkaz:
https://doaj.org/article/17d470bd871c45658484758070aab24d
Publikováno v:
Materials Research Express, Vol 7, Iss 10, p 106102 (2020)
We have deposited epitaxial thin films of the inverse perovskite Mn _3 GaC using magnetron sputtering from elemental targets. Two substrates were used, MgO (111) and (100), resulting in corresponding orientation of the Mn _3 GaC thin films. Both samp
Externí odkaz:
https://doaj.org/article/169cf5d102174240a313f59c2974f108
Publikováno v:
AIP Advances, Vol 5, Iss 11, Pp 117240-117240-8 (2015)
This paper reports the observation of a periodic runaway of plasma to a higher density for the reactive discharge of the target material (Ti) with moderate sputter yield. Variable emission of secondary electrons, for the alternating transition of the
Externí odkaz:
https://doaj.org/article/57527ceb3ce34b1e9f3714ddeaeed491