Browsing Institutt for fysikk by Journals "Physical Review Research (PRResearch)"

Now showing items 1-10 of 10

    • Creep failure in a threshold-activated dynamics: Role of temperature during a subcritical loading 

      Roy, Subhadeep; Hatano, Takahiro (Peer reviewed; Journal article, 2020)
      Creep is a time-dependent deformation of solids at relatively low stresses, leading to the breakdown with time. Here we propose a simple model for creep failure of disordered solids in which temperature and stress are ...

    • Enhancement of proximity-induced superconductivity in a planar Ge hole gas 

      Aggarwal, Kushagra; Hofmann, Andrea; Jirovec, Daniel; Prieto, Ivan; Sammak, Amir; Botifoll, Marc; Marti-Sanchez, Sara; Veldhorst, Menno; Arbiol, Jordi; Scapucci, Giordano; Danon, Jeroen; Katsaros, Georgios (Peer reviewed; Journal article, 2021)
      Hole gases in planar germanium can have high mobilities in combination with strong spin-orbit interaction and electrically tunable g factors, and are therefore emerging as a promising platform for creating hybrid ...

    • Hidden interplay of current-induced spin and orbital torques in bulk Fe3GeTe2 

      Saunderson, Tom G.; Go, Dongwook; Blügel, Stefan; Klaui, Mathias Michael; Mokrousov, Yuriy (Peer reviewed; Journal article, 2022)
      Low crystal symmetry of magnetic van der Waals materials naturally promotes spin-orbital complexity unachievable in common magnetic materials used for spin-orbit torque switching. Here, using first-principles methods, we ...

    • Highly tunable exchange-only singlet-only qubit in a GaAs triple quantum dot 

      Sala Cadellans, Arnau; Qvist, Jørgen Holme; Danon, Jeroen (Peer reviewed; Journal article, 2020)
      We propose an implementation of a singlet-only spin qubit in a GaAs-based triple quantum dot with a (1, 4, 1) charge occupation. In the central multielectron dot, the interplay between Coulomb interaction and an out-of-plane ...

    • Model for creep failure with healing 

      Roy, Subhadeep; Hatano, Takahiro (Journal article; Peer reviewed, 2022)

    • Nonequilibrium magnons from hot electrons in antiferromagnetic systems 

      Barbeau, Marion; Titov, Mikhail; Katsnelson, Mikhail I.; Qaiumzadeh, Alireza (Peer reviewed; Journal article, 2023)
      We describe a \emph{nonthermal} magnon activation mechanism in antiferromagnetic (AFM) systems via locally equilibrated \emph{spin-unpolarized} hot electrons excited by an ultrafast intense laser pulse. We employ a quantum ...

    • Phase transitions and correlations in fracture processes where disorder and stress compete 

      Sinha, Santanu; Roy, Subhadeep; Hansen, Alex (Peer reviewed; Journal article, 2020)
      We study the effect of the competition between disorder and stress enhancement in fracture processes using the local load sharing fiber bundle model, a model that hovers on the border between analytical tractability and ...

    • Phase-controlled spin and charge currents in a superconductor-ferromagnet hybrid 

      Rezaei, Ali; Hussein, Robert; Kamra, Akashdeep; Belzig, Wolfgang (Peer reviewed; Journal article, 2020)
      We investigate spin-dependent quasiparticle and Cooper-pair transport through a central node interfaced with two superconductors and two ferromagnets. We demonstrate that voltage biasing of the ferromagnetic contacts induces ...

    • 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 ...

    • Z2 characterization for three-dimensional multiband Hubbard models 

      Irsigler, Bernhard; Zheng, Jun-Hui; Grusdt, Fabian; Hofstetter, Walter (Peer reviewed; Journal article, 2020)
      We introduce three numerical methods for characterizing the topological phases of three-dimensional multiband Hubbard models based on twisted boundary conditions, Wilson loops, as well as the local topological marker. We ...