Viser treff 21-40 av 2646

    • Moiré fringes in conductive atomic force microscopy 

      Richarz, Leonie; He, J.; Ludacka, Ursula; Bourret, E.; Yan, Z.; Van Helvoort, Antonius; Meier, Dennis (Journal article; Peer reviewed, 2023)
      Moiré physics plays an important role in characterization of functional materials and engineering of physical properties in general, ranging from strain-driven transport phenomena to superconductivity. Here, we report on ...
    • Quasiclassical theory for antiferromagnetic metals 

      Fyhn, Eirik Holm; Brataas, Arne; Qaiumzadeh, Alireza; Linder, Jacob Wüsthoff (Peer reviewed; Journal article, 2023)
      Unlike ferromagnetism, antiferromagnetism cannot readily be included in the quasiclassical Keldysh theory because of the rapid spatial variation in the directions of of the magnetic moments. The quasiclassical framework ...
    • Superconducting Proximity Effect and Long-Ranged Triplets in Dirty Metallic Antiferromagnets 

      Fyhn, Eirik Holm; Brataas, Arne; Qaiumzadeh, Alireza; Linder, Jacob Wüsthoff (Journal article; Peer reviewed, 2023)
      Antiferromagnets have no net spin splitting on the scale of the superconducting coherence length. Despite this, antiferromagnets have been observed to suppress superconductivity in a similar way as ferromagnets, a phenomenon ...
    • Dc Josephson Effect in Altermagnets 

      Ouassou, Jabir Ali; Brataas, Arne; Linder, Jacob Wüsthoff (Journal article; Peer reviewed, 2023)
      The ability of magnetic materials to modify superconductors is an active research area for possible applications in thermoelectricity, quantum sensing, and spintronics. We consider the fundamental properties of the Josephson ...
    • Spin pumping from a ferromagnetic insulator into an altermagnet 

      Sun, Chi; Linder, Jacob Wüsthoff (Journal article; Peer reviewed, 2023)
      A class of antiferromagnets with spin-polarized electron bands, yet zero net magnetization, called altermagnets, is attracting increasing attention due to their potential use in spintronics. Here, we study spin injection ...
    • Probing Majorana localization in minimal Kitaev chains through a quantum dot 

      Souto, Rubén Seoane; Tsintzis, Athanasios; Leijnse, Martin; Danon, Jeroen (Peer reviewed; Journal article, 2023)
      Artificial Kitaev chains, formed by quantum dots coupled via superconductors, have emerged as a promising platform for realizing Majorana bound states. Even a minimal Kitaev chain (a quantum dot–superconductor–quantum dot ...
    • Three in One: Three Different Molybdates Trapped in a Thiacalix[4]arene Protected Ag<inf>72</inf> Nanocluster for Structural Transformation and Photothermal Conversion 

      Wang, Zhi; Zhu, Yan-Jie; Ahlstedt, Olli; Konstantinou, Konstantinos; Akola, Jaakko Eemeli; Tung, Chen-Ho; Alkan, Fahri; Sun, Di (Journal article; Peer reviewed, 2023)
    • Unveiling the Nature of Galactic TeV Sources with IceCube Results 

      Vecchiotti, Vittoria; Villante, F.L.; Pagliaroli, G. (Peer reviewed; Journal article, 2023)
      IceCube collaboration reported the first high-significance observation of the neutrino emission from the Galactic disk. The observed signal can be due to diffuse emission produced by cosmic rays interacting with interstellar ...
    • Hot electron enhanced photoemission from laser fabricated plasmonic photocathodes 

      Martinez-Calderon, Miguel; Groussin, Baptiste; Bjelland, Victoria Madeleine; Chevallay, Eric; Fedosseev, Valentin N.; Himmerlich, Marcel; Lorenz, Pierre; Manjavacas, Alejandro; Marsh, Bruce A.; Neupert, Holger; Rossel, Ralf E.; Wuensch, Walter; Granados, Eduardo (Peer reviewed; Journal article, 2023)
      Photocathodes are key elements in high-brightness electron sources and ubiquitous in the operation of large-scale accelerators, although their operation is often limited by their quantum efficiency and lifetime. Here, we ...
    • Rotational Curves of the Milky Way Galaxy and Andromeda Galaxy in Light of Vacuum Polarization around Eicheon † 

      Cherkas, Sergey L.; Kalashnikov, Vladimir (Peer reviewed; Journal article, 2023)
      Eicheon properties are discussed. It is shown that the eicheon surface allows setting a boundary condition for the vacuum polarization and obtaining a solution describing the dark matter tail in the Milky Way Galaxy. That ...
    • Pion condensation in QCD at finite isospin density, the dilute Bose gas, and speedy Goldstone bosons 

      Andersen, Jens Oluf; Zhou, Hua; Yu, Qing (Journal article, 2024)
      We consider pion condensation in QCD at finite isospin density μI and zero temperature using two-flavor chiral perturbation theory (χPT). The pressure is calculated to next-to-leading order (NLO) in the low-energy expansion. ...
    • Toward new liquid crystal phases of DNA mesogens 

      Gallagher, Kit; Yu, Jiaming; King, David. A.; Liu, Ren; Eiser, Erika (Journal article; Peer reviewed, 2023)
      Short, partially complementary, single-stranded (ss)DNA strands can form nanostructures with a wide variety of shapes and mechanical properties. It is well known that semiflexible, linear dsDNA can undergo an isotropic to ...
    • Contrast Enhanced Magnetic Resonance Imaging of Amyloid-β Plaques in a Murine Alzheimer's Disease Model 

      Sulheim, Einar; Widerøe, Marius; Bäck, Marcus; Nilsson, K Peter R; Hammarström, Per; Nilsson, Lars; Davies, Catharina de Lange; Åslund, Karl Olof Andreas (Journal article; Peer reviewed, 2023)
      Background: Early detection of amyloid-β (Aβ) aggregates is a critical step to improve the treatment of Alzheimer’s disease (AD) because neuronal damage by the Aβ aggregates occurs before clinical symptoms are apparent. ...
    • Transition from viscous fingers to foam during drainage in heterogeneous porous media 

      Lanza, Federico; Sinha, Santanu; Hansen, Alex; Rosso, Alberto; Talon, Laurent (Peer reviewed; Journal article, 2023)
      We investigate the behavior of drainage displacements in heterogeneous porous media finding a transition from viscous fingering to foam-like region. A pore network model incorporating the formation of blobs is adopted to ...
    • “We learn it [mathematics] at school so one thinks that one will use it …”: Learners’ beliefs about relevance and importance of learning mathematics. 

      Sachdeva, Shipra; Eggen, Per-Odd (Journal article; Peer reviewed, 2023)
      Denne artikkelen viser at når skoleledere og lærere samhandler i et regionalt utviklingsprosjekt som forutsetter bruk av eksterne kunnskapsressurser som kartleggingsdata og kompetansepakker, forholder de seg til ...
    • Control of Magnon Condensates 

      Frostad, Therese (Doctoral theses at NTNU;2024:63, Doctoral thesis, 2024)
      Spintronics is a technology driven field aimed at harnessing the electron spin for novel devices. This is in contrast to traditional electronics, where the electron charge is used as an information carrier. Advances in ...
    • Steady-State Two-Phase Flow of Compressible and Incompressible Fluids in a Capillary Tube of Varying Radius 

      Cheon, Hyejeong; Fyhn, Hursanay; Hansen, Alex; Wilhelmsen, Øivind; Sinha, Santanu (Peer reviewed; Journal article, 2023)
      We study immiscible two-phase flow of a compressible and an incompressible fluid inside a capillary tube of varying radius under steady-state conditions. The incompressible fluid is Newtonian and the compressible fluid is ...
    • Is the doped MoS2 basal plane an efficient hydrogen evolution catalyst? Calculations of voltage-dependent activation energy 

      Hanslin, Sander Øglænd; Jónsson, Hannes; Akola, Jaakko Eemeli (Peer reviewed; Journal article, 2023)
      Transition metal dichalcogenides are cheap and earth-abundant candidates for the replacement of precious metals as catalyst materials. Experimental measurements of the hydrogen evolution reaction (HER), for example, have ...
    • The Role of Boron in Low Copper Spheroidal Graphite Irons 

      Bugten, Andreas Voll; Michels Brito Miranda, Leander Edward; Brurok, Rune Botnmark; Hartung, Cathrine; Ott, Emmanuelle; Vines, Lasse; Li, Yanjun; Arnberg, Lars Erik; Sabatino, Marisa Di (Peer reviewed; Journal article, 2023)
      The effects of boron at concentrations ranging from 5 to 525 ppm in low copper spheroidal graphite iron (SGI) has been studied. At 130 to 140 ppm, no particular effect of boron was observed on the size distributions, number ...
    • Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2 

      Martin, F; Lee, K; Schmitt, M; Liedtke, A; Shahee, A; Simensen, Haakon Thømt; Scholz, T; Saundersen, T; Go, Dongwook; Gradhand, M; Denneulin, Thibaud; Kovacs, A; Lotsch, Bettina V.; Brataas, Arne; Klaeui, Mathias (Peer reviewed; Journal article, 2023)
      The recent emergence of magnetic van der Waals materials allows for the investigation of current-induced magnetisation manipulation in two-dimensional materials. Uniquely, Fe3GeTe2 has a crystalline structure that allows ...