Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Karin Cedergren"'
Autor:
Hans He, Karin Cedergren, Naveen Shetty, Samuel Lara-Avila, Sergey Kubatkin, Tobias Bergsten, Gunnar Eklund
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
The 2019 redefinition of the International System of Units requires a 100 Ω quantum resistance standard for the ideal electrical realization of the kilogram via the Kibble Balance. Here, the authors report the realization of an array of 236 graphene
Externí odkaz:
https://doaj.org/article/cb4cad8b248b48d9a292730efafe933c
Autor:
Tom Yager, Arseniy Lartsev, Karin Cedergren, Rositsa Yakimova, Vishal Panchal, Olga Kazakova, Alexander Tzalenchuk, Kyung Ho Kim, Yung Woo Park, Samuel Lara-Avila, Sergey Kubatkin
Publikováno v:
AIP Advances, Vol 5, Iss 8, Pp 087134-087134-7 (2015)
We investigate Ti/Au contacts to monolayer epitaxial graphene on SiC (0001) for applications in quantum resistance metrology. Using three-terminal measurements in the quantum Hall regime we observed variations in contact resistances ranging from a mi
Externí odkaz:
https://doaj.org/article/62c83a6e4fd2445985c6918333e357f3
Autor:
Karin Cedergren
Publikováno v:
Kosmos. 96:58-81
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d90f719c15ff8cdcbce0f4901de6f768
https://doi.org/10.31714/kosmos.2020.03
https://doi.org/10.31714/kosmos.2020.03
Autor:
Karin Cedergren
Publikováno v:
Nature Physics. 18:1130-1130
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaced2645d82f81fd71f3db0ae79d3e2
https://doi.org/10.1038/s41567-022-01746-1
https://doi.org/10.1038/s41567-022-01746-1
Autor:
Antti Manninen, Sivinee Sawatdiaree, S. Bauer, J. Nissila, Frederic Overney, Adrien Michon, Yaowaret Pimsut, Yefei Yin, Dong-Hun Chae, Blaise Jeanneret, Klaus Pierz, Martina Marzano, Massimo Ortolano, Mattias Kruskopf, Karin Cedergren, Félicien Schopfer, Tobias Bergsten, O. Thevenot, Luca Callegaro, Vincenzo D'Elia, Jan Kucera, Ngoc Thanh Mai Tran
Publikováno v:
Callegaro, L, D'Elia, V, Marzano, M, Tran, N T M, Ortolano, M, Kucera, J, Pierz, K, Bauer, S, Kruskopf, M, Yin, Y, Pimsut, Y, Schopfer, F, Thevenot, O, Jeanneret, B, Overney, F, Bergsten, T, Cedergren, K, Manninen, A, Nissilä, J, Michon, A, Sawatdiaree, S & Chae, D H 2020, The EMPIR Project GIQS : Graphene Impedance Quantum Standard . in 2020 Conference on Precision Electromagnetic Measurements, CPEM 2020 . IEEE Institute of Electrical and Electronic Engineers, 2020 Conference on Precision Electromagnetic Measurements, CPEM 2020, Virtual, Denver, United States, 24/08/20 . https://doi.org/10.1109/CPEM49742.2020.9191743
GIQS: Graphene Impedance Quantum Standard is a Joint Research Project of the European Metrology Programme for Innovation and Research (EMPIR). The project objective is to combine novel digital impedance measurement bridges with graphene-based ac quan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22248dc56c425eb5e74035479ccee606
http://hdl.handle.net/11583/2845733
http://hdl.handle.net/11583/2845733
Quantum physics in one spatial dimension is remarkably rich, yet even with strong interactions and disorder, surprisingly tractable. This is due to the fact that the low-energy physics of nearly all one-dimensional systems can be cast in terms of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af711453a2c5b1b61156af8ca6f01e3a
Autor:
Rositsa Yakimova, Kyung Ho Kim, Alexander Tzalenchuk, Nick Fletcher, Yung Woo Park, S. Rozhko, Gunnar Eklund, Karin Cedergren, Sergey Kubatkin, Samuel Lara-Avila, Tobias Bergsten, Hans He
Publikováno v:
Metrologia
One of the aspirations of quantum metrology is to deliver primary standards directly to end-users thereby significantly shortening the traceability chains and enabling more accurate products. Epitaxial graphene grown on silicon carbide (epigraphene)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d626647e7346d5622a922a16b22db3f
https://doi.org/10.1088/1681-7575/ab2807
https://doi.org/10.1088/1681-7575/ab2807
Autor:
Alexander Tzalenchuk, Mikael Syväjärvi, Sergey Kubatkin, Thomas Bjørnholm, Tjbm Janssen, Sergey Kopylov, Vladimir I. Fal'ko, Samuel Lara-Avila, Karin Cedergren, Olga Kazakova, Rositza Yakimova, Kasper Moth-Poulsen
Publikováno v:
Solid State Communications. 151:1094-1099
Here we review the concepts and technologies, in particular photochemical gating, which contributed to the recent progress in quantum Hall resistance metrology based on large scale epitaxial graphene on silicon carbide.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f7c6785add0222b5a943f597eb79fe0
https://doi.org/10.1016/j.ssc.2011.05.020
https://doi.org/10.1016/j.ssc.2011.05.020
Autor:
Karin Cedergren, F. Tafuri, Antonio Barone, Daniela Stornaiuolo, D. Born, F. Lombardi, Thilo Bauch
Publikováno v:
IEEE Transactions on Applied Superconductivity. 19:174-177
We report on the fabrication and properties of sub-micron YBa2Cu3O7-x off-axis biepitaxial junctions. The vision behind this work is to set up a reliable nanotechnology processing to improve junctions' performances and reproducibility through the red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8fbd3ad2f7b0f5b4061701903cdd6e8
https://doi.org/10.1109/tasc.2009.2018546
https://doi.org/10.1109/tasc.2009.2018546
Autor:
Francesco Tafuri, Tobias Lindström, Per Delsing, Karin Cedergren, J. R. Johansson, Tord Claeson, Floriana Lombardi, G. Rotoli, Thilo Bauch
Publikováno v:
Physica C: Superconductivity and its Applications. :335-338
We have observed energy level quantization in an all high critical temperature superconductor d-wave Josephson junction. From the measurements we have also extracted the quality factor Q of the junction which is of the order of 40. These results indi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6495df89b921d34d17ad8403b3a9f85
https://doi.org/10.1016/j.physc.2007.03.339
https://doi.org/10.1016/j.physc.2007.03.339