121 citations · 516 across the 22 of their papers we have counts for
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RKKY interaction in one-dimensional flat-band lattices
Katharina Laubscher, Clara S. Weber, Maximilian Hünenberger +4
We study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between two classical magnetic impurities in one-dimensional lattice models with flat bands. As two representative exa…
Planar Josephson junctions in germanium: Effect of cubic spin-orbit interaction
Melina Luethi, Katharina Laubscher, Stefano Bosco +2
Planar Josephson junctions comprising semiconductors with strong spin-orbit interaction (SOI) are promising platforms to host Majorana bound states (MBSs). Previous works on MBSs i…
Fractional second-order topological insulator from a three-dimensional coupled-wires construction
Katharina Laubscher, Pim Keizer, Jelena Klinovaja
We construct a three-dimensional second-order topological insulator with gapless helical hinge states from an array of weakly tunnel-coupled Rashba nanowires. For suitably chosen i…
RKKY interaction at helical edges of topological superconductors
Katharina Laubscher, Dmitry Miserev, Vardan Kaladzhyan +2
We study spin configurations of classical magnetic impurities placed close to the edge of a two-dimensional topological superconductor both analytically and numerically. First, we…