26 citations · 145 across the 15 of their papers we have counts for
15 papers
Bending-strain effects in conventional superconductors and superconducting junctions
Kjell S. Heinrich, Henning G. Hugdal, Morten Amundsen +1
We consider the effect of bending-strain in thin films of clean, conventional superconductors (S), and the proximity-induced effect of this strain in SN bilayers with a normal meta…
Strong photon coupling to high-frequency antiferromagnetic magnons via topological surface states
Henrik T. Kaarbø, Henning G. Hugdal, Sol H. Jacobsen
We show strong coupling between antiferromagnetic magnons and microwave cavity photons at both high and externally controllable magnon frequencies. Using the fully quantum mechanic…
Electrical control of superconducting spin valves using ferromagnetic helices
Tancredi Salamone, Henning G. Hugdal, Morten Amundsen +1
The geometrical properties of a helical ferromagnet are shown theoretically to control the critical temperature of a proximity-coupled superconductor. Using the Usadel equation for…
Dichroic cavity mode splitting and lifetimes from interactions with a ferromagnetic metal
Henning G. Hugdal, Eirik Jaccheri Høydalsvik, Sol H. Jacobsen
We study the effect of ferromagnetic metals (FM) on the circularly polarized modes of an electromagnetic cavity and show that broken time-reversal symmetry leads to a dichroic resp…
Non-constant geometric curvature for tailored spin-orbit coupling and chirality in superconductor-magnet heterostructures
Alv Johan Skarpeid, Henning G. Hugdal, Tancredi Salamone +2
We show that tailoring the geometric curvature profile of magnets can be used for bespoke design of an effective non-relativistic spin-orbit coupling, which may be used to control…
Interface probe for antiferromagnets using geometric curvature
Tancredi Salamone, Magnus Skjærpe, Henning G. Hugdal +2
We propose that geometric curvature and torsion may be used to probe the quality of an uncompensated antiferromagnetic interface, using the proximity effect. We study a helix of an…
Cavity-mediated superconductor$\unicode{x2013}$ferromagnetic insulator coupling
Andreas T. G. Janssønn, Henning G. Hugdal, Arne Brataas +1
A recent proof of concept showed that cavity photons can mediate superconducting (SC) signatures to a ferromagnetic insulator (FI) over a macroscopic distance [Phys. Rev. B, 102, 1…
High magnetic field superconductivity in a two-band superconductor
Tancredi Salamone, Henning G. Hugdal, Sol H. Jacobsen +1
When applying an external magnetic field to a superconductor, orbital and Pauli paramagnetic pairbreaking effects govern the limit of the upper critical magnetic field that can be…
Curvature control of the superconducting proximity effect in diffusive ferromagnetic nanowires
Tancredi Salamone, Henning G. Hugdal, Morten Amundsen +1
Coupling a conventional s-wave superconductor to a ferromagnet allows, via the proximity effect, to generate superconducting triplet correlations. This feature can be employed to a…
Possible odd-frequency Amperean magnon-mediated superconductivity in topological insulator -- ferromagnetic insulator bilayer
Henning G. Hugdal, Asle Sudbø
We study the magnon-mediated pairing between fermions on the surface of a topological insulator (TI) coupled to a ferromagnetic insulator with a tilted mean field magnetization. Ti…
Inverse proximity effect in -wave and -wave superconductors coupled to topological insulators
Henning G. Hugdal, Morten Amundsen, Jacob Linder +1
We study the inverse proximity effect in a bilayer consisting of a thin - or -wave superconductor (S) and a topological insulator (TI). Integrating out the topological fermio…
Vortex spin-valve on a topological insulator
Morten Amundsen, Henning G. Hugdal, Asle Sudbø +1
Spin-valve structures are usually associated with the ability to modify the resistance of electrical currents. We here demonstrate a profoundly different effect of a spin-valve. In…
Magnon-induced superconductivity in a topological insulator coupled to ferro- and antiferromagnetic insulators
Henning G. Hugdal, Stefan Rex, Flavio S. Nogueira +1
We study the effective interactions between Dirac fermions on the surface of a three-dimensional topological insulator due to the proximity coupling to the magnetic fluctuations in…
p-wave superconductivity in weakly repulsive 2D Hubbard model with Zeeman splitting and weak Rashba spin-orbit coupling
Henning G. Hugdal, Asle Sudbø
We study the superconducting order in a two-dimensional square lattice Hubbard model with weak repulsive interactions, subject to a Zeeman field and weak Rashba spin-orbit interact…
Quasiclassical theory for the superconducting proximity effect in Dirac materials
Henning G. Hugdal, Jacob Linder, Sol H. Jacobsen
We derive the quasiclassical non-equilibrium Eilenberger and Usadel equations to first order in quantities small compared to the Fermi energy, valid for Dirac edge and surface elec…