Superconductor-altermagnet memory functionality without stray fields

HG Giil, J Linder - Physical Review B, 2024 - APS
A novel class of antiferromagnets, dubbed altermagnets, exhibit a nonrelativistically spin-
split band structure reminiscent of the order parameter phase d-wave superconductors …

Cavity magnon-polaritons in cuprate parent compounds

JB Curtis, A Grankin, NR Poniatowski, VM Galitski… - Physical Review …, 2022 - APS
Cavity control of quantum matter may offer new ways to study and manipulate many-body
systems. A particularly appealing idea is to use cavities to enhance superconductivity …

Collective excitations of a Bose–Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity

M Santiago-García… - New Journal of …, 2023 - iopscience.iop.org
The exchange of collective modes has been demonstrated to be a powerful tool for inducing
superconductivity and superfluidity in various condensed matter and atomic systems. In this …

Eliashberg study of superconductivity induced by interfacial coupling to antiferromagnets

E Thingstad, E Erlandsen, A Sudbø - Physical Review B, 2021 - APS
We perform Eliashberg calculations for magnon-mediated superconductivity in a normal
metal, where the electron-magnon interaction arises from interfacial coupling to …

Electron-magnon coupling and quasiparticle lifetimes on the surface of a topological insulator

K Mæland, HI Røst, JW Wells, A Sudbø - Physical Review B, 2021 - APS
The fermionic self-energy on the surface of a topological insulator proximity coupled to ferro-
and antiferromagnetic insulators is studied. An enhanced electron-magnon coupling is …

Renormalization of antiferromagnetic magnons by superconducting condensate and quasiparticles

AM Bobkov, SA Sorokin, IV Bobkova - Physical Review B, 2023 - APS
The ability to modify and tune the spin-wave dispersion is one of the most important
requirements for engineering of magnonic networks. In this study, we demonstrate the …

Magnon drag in a metal–insulating antiferromagnet bilayer

E Erlandsen, A Sudbø - Physical Review B, 2022 - APS
We study a bilayer structure consisting of an antiferromagnetic insulator and a normal metal.
An electron current is driven in the normal metal with direction parallel to the interface …

Spin transport from order to disorder

D Reitz, Y Tserkovnyak - Physical Review B, 2023 - APS
Schwinger boson mean-field theory (SBMFT) is a nonperturbative approach which treats
ordered and disordered phases of magnetic systems on equal footing. We leverage its …

Electron-magnon coupling and magnon-induced superconductivity in hybrid structures of metals and magnets with non-collinear ground states

J Benestad - 2022 - ntnuopen.ntnu.no
Electron-magnon interactions in a bilayer of monoatomic metal and a non-collinear spiral
phase ferromagnetic insulator are studied on a triangular lattice, motivated by recent interest …

Collective excitations of a Bose-Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity

S Moroni-García, A Camacho-Guardian - arXiv preprint arXiv:2304.09021, 2023 - arxiv.org
The exchange of collective modes has been demonstrated to be a powerful tool for inducing
superconductivity and superfluidity in various condensed matter and atomic systems. In this …