Blar i NTNU Open på forfatter "Johnsen, Lina G."
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Controllable Enhancement of p-Wave Superconductivity via Magnetic Coupling to a Conventional Superconductor
Olthof, Linde; Johnsen, Lina G.; Robinson, Jason W.A.; Linder, Jacob (Peer reviewed; Journal article, 2021)Unconventional superconductors are of high interest due to their rich physics, a topical example being topological edge states associated with p-wave superconductivity. A practical obstacle in studying such systems is the ... -
Controlling the Superconducting Transition by Rotation of an Inversion Symmetry-Breaking Axis
Johnsen, Lina G.; Svalland, Kristian; Linder, Jacob (Peer reviewed; Journal article, 2020)We consider a hybrid structure where a material with Rashba-like spin-orbit coupling is proximity coupled to a conventional superconductor. We find that the superconducting critical temperature Tc can be tuned by rotating ... -
Magnetic control of superconducting heterostructures using compensated antiferromagnets
Johnsen, Lina G.; Jacobsen, Sol; Linder, Jacob (Peer reviewed; Journal article, 2021)Due to the lack of a net magnetization both at the interface and in the bulk, antiferromagnets with compensated interfaces may appear incapable of influencing the phase transition in an adjacent superconductor via the spin ... -
Magnetization reorientation due to the superconducting transition in heavy-metal heterostructures
Johnsen, Lina G.; Banerjee, Niladri; Linder, Jacob (Journal article; Peer reviewed, 2019)Recent theoretical and experimental work has demonstrated how the superconducting critical temperature (Tc) can be modified by rotating the magnetization of a single homogeneous ferromagnet proximity-coupled to the ... -
Magnon Spin Current Induced by Triplet Cooper Pair Supercurrents
Johnsen, Lina G.; Simensen, Haakon Thømt; Brataas, Arne; Linder, Jacob (Peer reviewed; Journal article, 2021)At the interface between a ferromagnetic insulator and a superconductor there is a coupling between the spins of the two materials. We show that when a supercurrent carried by triplet Cooper pairs flows through the ... -
Spin injection and spin relaxation in odd-frequency superconductors
Johnsen, Lina G.; Linder, Jacob (Peer reviewed; Journal article, 2021)The spin transport inside an odd-frequency spin-triplet superconductor differs from that of a conventional superconductor due to its distinct symmetry properties. We study spin transport inside an emergent odd-frequency ... -
Spin pumping between noncollinear ferromagnetic insulators through thin superconductors
Simensen, Haakon Thømt; Johnsen, Lina G.; Linder, Jacob; Brataas, Arne (Peer reviewed; Journal article, 2021)Dynamical magnets can pump spin currents into superconductors. To understand such a phenomenon, we develop a method utilizing the generalized Usadel equation to describe time-dependent situations in superconductors in ... -
Superconductivity assisted change of the perpendicular magnetic anisotropy in V/MgO/Fe junctions
González-Ruano, César; Caso, Diego; Johnsen, Lina G.; Tiusan, Coriolan; Hehn, Michel; Banerjee, Niladri; Linder, Jacob; Aliev, Farkhad G. (Peer reviewed; Journal article, 2021)Controlling the perpendicular magnetic anisotropy (PMA) in thin films has received considerable attention in recent years due to its technological importance. PMA based devices usually involve heavy-metal (oxide)/ferroma ... -
Superconductivity-induced change in magnetic anisotropy in epitaxial ferromagnet-superconductor hybrids with spin-orbit interaction
González-Ruano, César; Johnsen, Lina G.; Caso, Diego; Tiusan, Coriolan; Hehn, Michel; Banerjee, Niladri; Linder, Jacob; Aliev, Farkhad G. (Peer reviewed; Journal article, 2020)The interaction between superconductivity and ferromagnetism in thin film superconductor/ferromagnet heterostructures is usually reflected by a change in superconductivity of the S layer set by the magnetic state of the F ...