Blar i NTNU Open på forfatter "Linder, Jacob Wüsthoff"
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Andreev reflection in altermagnets
Sun, Chi; Brataas, Arne; Linder, Jacob Wüsthoff (Journal article; Peer reviewed, 2023)Recent works have predicted materials featuring bands with a large spin-splitting distinct from ferromagnetic and relativistically spin-orbit-coupled systems. Materials displaying this property are known as altermagnets ... -
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 ... -
Extreme enhancement of superconductivity in epitaxial aluminum near the monolayer limit
van Weerdenburg, Werner M.J.; Kamlapure, Anand; Fyhn, Eirik Holm; Huang, Xiaochun; van Mullekom, Niels P.E.; Steinbrecher, Manuel; Krogstrup, Peter; Linder, Jacob Wüsthoff; Khajetoorians, Alexander Ako (Peer reviewed; Journal article, 2023)BCS theory has been widely successful at describing elemental bulk superconductors. Yet, as the length scales of such superconductors approach the atomic limit, dimensionality as well as the environment of the superconductor ... -
Observation of magnetic state dependent thermoelectricity in superconducting spin valves
Gonzalez-Ruano, C.; Caso, D.; Ouassou, Jabir Ali; Tiusan, C.; Lu, Y.; Linder, Jacob Wüsthoff; Aliev, Farkhad G. (Peer reviewed; Journal article, 2023)Superconductor-ferromagnet tunnel junctions demonstrate giant thermoelectric effects that are being exploited to engineer ultrasensitive terahertz radiation detectors. Here, we experimentally observe the recently predicted ... -
On-off switch and sign change for a nonlocal Josephson diode in spin-valve Andreev molecules
Hodt, Erik Wegner; Linder, Jacob Wüsthoff (Peer reviewed; Journal article, 2023)Andreev molecules consist of two coherently coupled Josephson junctions and permit nonlocal control over supercurrents. By making the barriers magnetic and thus creating a spin valve, we predict that a nonlocal Josephson ... -
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 ... -
Spin currents and torques via magnons, electrons, and Cooper pairs
Risinggård, Vetle Kjær (Doctoral theses at NTNU;2019:224, Doctoral thesis, 2019)Spin-based electronics—spintronics—is a candidate technology for complementing or replacing traditional semiconductor electronics at the end of Moore's law. We consider different spin carriers—electrons, magnons, and Cooper ... -
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 ... -
Spin pumping from a ferromagnetic insulator to an unconventional superconductor with interfacial Andreev bound states
Sun, Chi; Linder, Jacob Wüsthoff (Journal article; Peer reviewed, 2023)Spin pumping from a ferromagnetic insulator into a high-Tc superconductor with a d-wave superconducting order parameter has recently been experimentally observed. Such unconventional superconducting order is known to ... -
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 ... -
Transient dynamics and quantum phase diagram for the square lattice Rashba-Hubbard model at arbitrary hole doping
Hodt, Erik Wegner; Ouassou, Jabir Ali; Linder, Jacob Wüsthoff (Peer reviewed; Journal article, 2023)Adding a Rashba term to the Hubbard Hamiltonian produces a model which can be used to learn how spin-orbit interactions impact correlated electrons on a lattice. Previous works have studied such a model using a variety of ...