Now showing items 1660-1679 of 3682

  • Andersson, Riccard (Doctoral thesis / Doktoravhandling, 2017)
    Accelerator-based research facilities play a key role in modern research, where they increasingly push the technical limits. At the same time, they aim at competing with industrial and nuclear research facilities in ...
  • Bengaard Hansen, Ursula; Syljuåsen, Olav Fredrik; Jensen, Jens; Schaffer, Turi K.; Boehm, Martin; Andersen, Christopher R.; Ridriguez-Rivera, Jose A.; Christensen, Niels Bech; Lefmann, Kim (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract When charged particles in periodic lattices are subjected to a constant electric field, they respond by oscillating. Here we demonstrate that the magnetic analogue of these Bloch oscillations are realised in a ...
  • Seland, Aleksander (Master thesis / Masteroppgave, 2017)
    The material CoNb2O6 has in recent times attracted much attention due to having rich physics in applied magnetic fields. This thesis explores whether or not it is possible to observe magnetic Bloch oscillations in CoNb2O6. ...
  • Campana Perilla, Ana Lucia; Joudeh, Nadeem; Linke, Dirk; Mikheenko, Pavlo (Chapter / Bokkapittel / SubmittedVersion, 2021)
    Palladium (Pd) is a scarce metal, which is able to catalyze a variety of important chemical reactions. In the bulk form, Pd is anomalous paramagnetic, but in the form of nanoparticles, it has been reported as ferromagnetic. ...
  • Leonhardt, Andreas Karl (Master thesis / Masteroppgave, 2014)
    In this thesis we investigated magnetic excitations in the iridate compound Sr2IrO4. As a layered strongly correlated system it can be described by the two-dimensional one-band Hubbard model, describing interacting particles ...
  • Chaves, Davi A. D.; Valerio-Cuadros, M.I.; Jiang, L.; Abbey, E.A.; Colauto, Fabiano; Oliveira, A.A.M.; De Andrade, Andrade; Pinheiro, L.B.L.G.; Johansen, Tom Henning; Xue, C.; Zhou, Y.-H.; Silhanek, A.V.; Ortiz, W.A.; Motta, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Ubiquitous in most superconducting materials and a common result of nanofabrication processes, weak links are known for their limiting effects on the transport of electric currents. Still, they are at the root of key ...
  • Garcia, Odd Erik; Leer, Egil; Pecseli, Hans; Trulsen, Jan Karsten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Analytical models are presented for currents along vertical magnetic field lines due to slow bulk electron motion in plasmas subject to a gravitational force. It is demonstrated that a general feature of this problem is a ...
  • Qureishy, Thomas; Zhao, Yue; Xu, Yan; Vestgården, Jørn Inge; Johansen, Tom Henning; Grivel, Jean-Claude; Suo, Hongli; Mikheenko, Pavlo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Magneto-optical imaging of YBa2Cu3O7-δ films with high critical current density, synthesized by a cost-effective metal organic decomposition technique reveals inhomogeneous flux penetration in the specimens in the form of ...
  • Baruch-El, E.; Baziljevich, Michail; Johansen, Tom Henning; Zhou, Xiaoyu; Jia, Xiaoqing; Jin, Biaobing; Shaulov, Avner; Yeshurun, Yosef (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Magneto-optical imaging of dendritic flux instability is reported for NbN films exposed to magnetic fields ramped at a fast rate (0.1–3.2 kT s−1 ). The results show that as the magnetic ramp rate increases, the temperature ...
  • Pinheiro, L.B.L.G.; Jiang, L.; Abbey, E.A.; Chaves, Davi A. D.; Chiquito, A.J.; Johansen, Tom Henning; Van De Vondel, De; Xue, C.; Zhou, Y.-H.; Silhanek, A.V.; Ortiz, W.A.; Motta, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Thickness uniformity is regarded as an important parameter in designing thin film devices. However, some applications based on films with nonuniform thickness have recently emerged, such as gas sensors and optimized materials ...
  • Mikheenko, Pavlo (Chapter / Bokkapittel / SubmittedVersion, 2021)
    Being biological object, microtubules attract significant attention in physics, since it is believed that they are responsible for quantum processing of information in the brain. There were, however, no direct experiments ...
  • Thorens, Louison; Måløy, Knut Jørgen; Santucci, Stephane; Bourgoin, Mickael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract A pile of grains, even when at rest in a silo, can display fascinating properties. One of the most celebrated is the Janssen effect, named after the pioneering engineer who explained the pressure saturation at the ...
  • Ofstad, Benedicte; Wibowo-Teale, Meilani; Kristiansen, Håkon Emil; Aurbakken, Einar; Kitsaras, Marios-Petros; Schøyen, Øyvind Sigmundson; Hauge, Eirill Strand; Irons, Tom J. P.; Kvaal, Simen; Stopkowicz, Stella; Wibowo-Teale, Andrew M.; Pedersen, Thomas Bondo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    We present a numerical approach to magnetic optical rotation based on real-time time-dependent electronic-structure theory. Not relying on perturbation expansions in the magnetic-field strength, the formulation allows us ...
  • Hanekamp, Bettina; Viktil, Ellen; Slørdahl, Kathinka; Dormagen, Johann Baptist; Kløw, Nils-Einar; Malinen, Eirik; Brunborg, Cathrine; Guren, Marianne; Schulz, Anselm (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Abstract Purpose To analyze tumor characteristics derived from pelvic magnetic resonance imaging (MRI) of patients with squamous cell carcinoma of the anus (SCCA) before and during chemoradiotherapy ...
  • McGinley, Gary George (Master thesis / Masteroppgave, 2015)
    Distortion and other artefacts caused by an uneven magnetic field affect MR images acquired with the rapid technique echo-planar imaging (EPI). This study investigates the effectiveness of reverse gradient susceptibility ...
  • Glesne, Erik (Master thesis / Masteroppgave, 2015)
    Oppgaven omfatter studier av strukturelle og magnetiske egenskaper til materialer med lagdelt struktur i klassen lagdelte dobbelthydroksider (LDH). LDHer er lagdelte leirematerialer der det sitter vann og ladningsbalanserende ...
  • Paul, R.; Adhikari, Sayan; Moulick, R.; Kausik, S. S.; Saikia, B. K. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The sheath formation in a weakly magnetized collisionless electronegative plasma consisting of electrons and negative and positive ions has been numerically investigated using the hydrodynamic equations. The electrons and ...
  • Qureishy, Thomas (Doctoral thesis / Doktoravhandling, 2018)
  • Mikheenko, Pavlo; Yurchenko, Vitaliy; Tanner, John L.; Qviller, Atle Jorstad; Galperin, Yuri; Vestgården, Jørn Inge; Crisan, A; Johansen, Tom Henning (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    The columnar growth of superconducting films is a new approach that provides high density of evenly distributed extended defects on the nanometer scale. This growth can be activated by tightly-packed nanoparticles deposited ...
  • Qviller, Atle Jorstad (Doctoral thesis / Doktoravhandling, 2012)