Exceeding the Chandrasekhar-Clogston limit in flat-band superconductors: A multiband strong-coupling approach

K Mæland, A Sudbø - Physical Review B, 2023 - APS
Hybrid systems of superconductors and magnets display several intriguing properties, both
from a fundamental physics point of view and with practical applications. Promising …

Strong-coupling approach to temperature dependence of competing orders of superconductivity: Possible time-reversal symmetry breaking and nontrivial topology

C Sun, K Mæland, E Thingstad, A Sudbø - Physical Review B, 2024 - APS
We use strong-coupling Eliashberg theory to study the competition of separate
superconducting orders at low temperatures. Specifically, we study magnon-mediated …

Proximity Effects in Single-and Two-Band Superconducting Heterostructures: A Time-Dependent Ginzburg-Landau Approach

CA Aguirre, J Faúndez, P Díaz, D Laroze… - Journal of Low …, 2024 - Springer
In this work, we study the proximity effects in a single-and two-band superconducting three-
dimensional heterostructure, described by two condensates (condensate 1 and condensate …

Field-free Josephson diode effect in interacting chiral quantum dot junctions

D Debnath, P Dutta - arXiv preprint arXiv:2411.18325, 2024 - arxiv.org
We investigate chiral quantum dot (QD)-based Josephson junction and show the correlation-
induced Josephson diode effect (JDE) in it. The presence of electron-electron interaction …

Evidence of controlling vortex matter via a superconducting Nanobridge

CA Aguirre, J Faundez, P Diaz, D Laroze… - arXiv preprint arXiv …, 2024 - arxiv.org
We theoretically investigate the magnetic response on a three-dimensional superconducting
nanobridge system, which is compound of two parallel parallelepiped (samples) connected …

Many-body effects and topology in magnets and superconductors

K Mæland - 2024 - ntnuopen.ntnu.no
Solid materials where quantum mechanical effects dominate the behavior can contribute to
faster and more energy-efficient computers. The road to technological application starts with …