Unconventional Meissner screening induced by chiral molecules in a conventional superconductor

H Alpern, M Amundsen, R Hartmann, N Sukenik… - Physical Review …, 2021 - APS
The coupling of a superconductor (SC) to a different material often results in a system with
unconventional superconducting properties. A conventional SC is a perfect diamagnet …

Expansion of a superconducting vortex core into a diffusive metal

VS Stolyarov, T Cren, C Brun, IA Golovchanskiy… - Nature …, 2018 - nature.com
Vortices in quantum condensates exist owing to a macroscopic phase coherence. Here we
show, both experimentally and theoretically, that a quantum vortex with a well-defined core …

Quasiclassical theory for antiferromagnetic metals

EH Fyhn, A Brataas, A Qaiumzadeh, J Linder - Physical Review B, 2023 - APS
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 …

[HTML][HTML] SuperConga: An open-source framework for mesoscopic superconductivity

P Holmvall, N Wall Wennerdal, M Håkansson… - Applied Physics …, 2023 - pubs.aip.org
We present SuperConga, an open-source framework for simulating equilibrium properties of
unconventional and ballistic singlet superconductors, confined to two-dimensional (2D) …

Finite element method for the quasiclassical theory of superconductivity

KM Seja, T Löfwander - Physical Review B, 2022 - APS
The Eilenberger-Larkin-Ovchinnikov-Eliashberg quasiclassical theory of superconductivity is
a powerful method enabling studies of a wide range of equilibrium and nonequilibrium …

Controlling supercurrents and their spatial distribution in ferromagnets

K Lahabi, M Amundsen, JA Ouassou, E Beukers… - Nature …, 2017 - nature.com
Spin-triplet Cooper pairs induced in ferromagnets form the centrepiece of the emerging field
of superconducting spintronics. Usually the focus is on the spin-polarization of the triplets …

Pure odd-frequency superconductivity at the cores of proximity vortices

M Alidoust, A Zyuzin, K Halterman - Physical Review B, 2017 - APS
After more than a decade, direct observation of the odd frequency triplet pairing state in
superconducting hybrid structures remains elusive. We propose an experimentally feasible …

Long-ranged triplet supercurrent in a single in-plane ferromagnet with spin-orbit coupled contacts to superconductors

JR Eskilt, M Amundsen, N Banerjee, J Linder - Physical Review B, 2019 - APS
By converting conventional spin-singlet Cooper pairs to polarized spin-triplet pairs, it is
possible to sustain long-ranged spin-polarized supercurrents flowing through strong …

Quasiclassical theory of charge transport across mesoscopic normal-metal–superconducting heterostructures with current conservation

KM Seja, T Löfwander - Physical Review B, 2021 - APS
We consider the steady-state nonequilibrium behavior of mesoscopic superconducting wires
connected to normal-metal reservoirs. Going beyond the diffusive limit, we utilize the …

Two-dimensional Josephson vortex lattice and anomalously slow decay of the Fraunhofer oscillations in a ballistic SNS junction with a warped Fermi surface

VP Ostroukh, B Baxevanis, AR Akhmerov… - Physical Review B, 2016 - APS
The critical current of a Josephson junction is an oscillatory function of the enclosed
magnetic flux Φ, because of quantum interference modulated with periodicity h/2 e. We …