Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Kim, Lefmann"'
Autor:
Elisabetta Nocerino, Irene Sanlorenzo, Konstantinos Papadopoulos, Marisa Medarde, Jike Lyu, Yannick Maximilian Klein, Arianna Minelli, Zakir Hossain, Arumugam Thamizhavel, Kim Lefmann, Oleh Ivashko, Martin von Zimmermann, Yasmine Sassa, Martin Månsson
Publikováno v:
Communications Materials, Vol 4, Iss 1, Pp 1-12 (2023)
Abstract The quasi-2D platinum-based rare earth intermetallic LaPt2Si2 has attracted attention as it exhibits strong interplay between charge density wave order and superconductivity. However, most of the results reported on this material come from t
Externí odkaz:
https://doaj.org/article/ad66f3fe141f444284f20240c79667aa
Autor:
Ursula B. Hansen, Olav F. Syljuåsen, Jens Jensen, Turi K. Schäffer, Christopher R. Andersen, Martin Boehm, Jose A. Rodriguez-Rivera, Niels B. Christensen, Kim Lefmann
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
An electron subject to a periodic potential and a constant electric field exhibit oscillatory dynamics, known as Bloch oscillations. Here, the authors demonstrate a magnetic analogue of Bloch oscillations in a ferromagnetic near-Ising chain, where ma
Externí odkaz:
https://doaj.org/article/cbb1de08fb304c6e83f41b785d2a6a98
Autor:
Anders B. A. Andersen, Rasmus Tang Christiansen, Sofie Holm-Janas, Anna S. Manvell, Kasper S. Pedersen, Denis Sheptyakov, Jan Peter Embs, Henrik Jacobsen, Edgar Dachs, Juha Vaara, Kim Lefmann, Ulla Gro Nielsen
Publikováno v:
Physical Chemistry Chemical Physics. 25:3309-3322
CoAl4(OH)12(SO4)·3H2O is a 0D magnet and MAl4(OH)12(SO4)·3H2O with M = Ni2+ and Cu2+ are ferromagnetic spin chains (no magnetic ordering > 2 K) based on magnetic susceptibility, neutron scattering, NMR, and first-principles calculations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dccb8752b2309675050223c072ac367
https://doi.org/10.1039/d2cp05362d
https://doi.org/10.1039/d2cp05362d
Publikováno v:
SoftwareX, Vol 12, Iss , Pp 100600- (2020)
Novel multiplexing triple-axis neutron scattering spectrometers yield significant improvements to the common triple-axis concept. While the planar scattering geometry keeps ensuring compatibility with complex sample environments, a simultaneous detec
Externí odkaz:
https://doaj.org/article/9ebb12fb1de745b2a53db356232dcd15
Autor:
Mikkel A. Sørensen, Ursula B. Hansen, Mauro Perfetti, Kasper S. Pedersen, Elena Bartolomé, Giovanna G. Simeoni, Hannu Mutka, Stéphane Rols, Minki Jeong, Ivica Zivkovic, Maria Retuerto, Ana Arauzo, Juan Bartolomé, Stergios Piligkos, Høgni Weihe, Linda H. Doerrer, Joris van Slageren, Henrik M. Rønnow, Kim Lefmann, Jesper Bendix
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Suppression of quantum tunneling in molecular magnets is key for their magnetic behaviours to be exploitable. Here, the authors show that tuning the geometry of lanthanide single-ion magnets leads to a suppression of the quantum tunneling, finding a
Externí odkaz:
https://doaj.org/article/32ec8e9f2006483f8d984108a8438cc3
Autor:
Ana-Elena Ţuţueanu, Machteld E. Kamminga, Tim B. Tejsner, Henrik Jacobsen, Henriette W. Hansen, Monica-Elisabeta Lăcătuşu, Jacob Baas, Kira L. Eliasen, Jean-Claude Grivel, Yasmine Sassa, Niels Bech Christensen, Paul Steffens, Martin Boehm, Andrea Piovano, Kim Lefmann, Astrid T. Rømer
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba0e5f7729d6c39e9b57fd0d660fc52d
https://doi.org/10.1103/physrevb.107.174514
https://doi.org/10.1103/physrevb.107.174514
Autor:
Machteld E. Kamminga, Kristine M. L. Krighaar, Astrid T. Rømer, Lise Ø. Sandberg, Pascale P. Deen, Martin Boehm, Genda D. Gu, John M. Tranquada, Kim Lefmann
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310e8657a16d1230681d4550a23647b5
https://doi.org/10.1103/physrevb.107.144506
https://doi.org/10.1103/physrevb.107.144506
Autor:
Asla Husgard, Martin A. Olsen, Rebekka Frøystad, Jonas P. Hyatt, Mads Bertelsen, Rasmus Toft-Petersen, Kim Lefmann
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 10, p 103501 (2020)
We model the effect of ground movement, based on empirical experience, on the transport properties of long neutron guides by ray-tracing simulations. For a simple model, our results reproduce the large losses found by an earlier study, while for a mo
Externí odkaz:
https://doaj.org/article/bab836f927e84024927dd88abde3f692
Publikováno v:
Journal of Neutron Research. 23:69-92
It is generally known that counting statistics is not correctly described by a Gaussian approximation. Nevertheless, in neutron scattering, it is common practice to apply this approximation to the counting statistics; also at low counting numbers. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cc6ce4fbd9f2a0ea574f13d6298018b
https://doi.org/10.3233/jnr-190145
https://doi.org/10.3233/jnr-190145
Publikováno v:
Quantum Beam Science, Vol 3, Iss 3, p 16 (2019)
We describe a systematic approach for the design of long, ballistic cold, and thermal neutron guides for the European Spallation Source (ESS). The guides investigated in this work are 170 m long and are required to have a narrowing point with room fo
Externí odkaz:
https://doaj.org/article/1c564028ca784905b29f10b37fdcc410