77 citations · 216 across the 10 of their papers we have counts for
10 papers
Magnetic domain walls for tunable Majorana devices
Daniel Hauck, Stefan Rex, Markus Garst
Identifying realistic platforms capable of controlled operations with Majorana bound states is a key challenge in the study of topological superconductivity. Among the most promisi…
A topological flux trap: Majorana bound states at screw dislocations
Stefan Rex, Roland Willa
The engineering of non-trivial topology in superconducting heterostructures is a very challenging task. Reducing the number of components in the system would facilitate the creatio…
Majorana modes in emergent-wire phases of helical and cycloidal magnet-superconductor hybrids
Stefan Rex, Igor V. Gornyi, Alexander D. Mirlin
Noncollinear magnetism opens exciting possibilities to generate topological superconductivity. Here, we focus on helical and cycloidal magnetic textures in magnet-superconductor hy…
Majorana bound states in magnetic skyrmions imposed onto a superconductor
Stefan Rex, Igor V. Gornyi, Alexander D. Mirlin
We consider a superconducting film exchange-coupled to a close-by chiral magnetic layer and study how magnetic skyrmions can induce the formation of Majorana bound states (MBS) 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…
Topological staggered field-electric effect with bipartite magnets
Stefan Rex, Flavio Nogueira, Asle Sudbø
We study the interface physics of bipartite magnetic materials deposited on a topological insulator. This comprises antiferromagnets as well as ferrimagnets and ferromagnets with m…
Topological magnetic dipolar interaction and non-local electric magnetization control in topological insulator heterostructures
Stefan Rex, Flavio S. Nogueira, Asle Sudbo
The magnetoelectric effect predicted in topological insulators makes heterostructures that combine magnetic materials and such insulators promising candidates for spintronics appli…
Non-local topological magnetoelectric effect by Coulomb interaction at a topological insulator-ferromagnet interface
Stefan Rex, Flavio Nogueira, Asle Sudbø
The interface between a topological insulator and a ferromagnetic insulator exhibits an interesting interplay of topological Dirac electrons and magnetism. As has been shown recent…
Surface instability in nodal noncentrosymmetric superconductors
Carsten Timm, Stefan Rex, P. M. R. Brydon
We study the stability of topologically protected zero-energy flat bands at the surface of nodal noncentrosymmetric superconductors, accounting for the alteration of the gap near t…
Tilting of the magnetic field in Majorana nanowires: critical angle and zero-energy differential conductance
Stefan Rex, Asle Sudbø
Semiconductor nanowires with strong spin-orbit coupling and proximity-induced s-wave superconductivity in an external magnetic field have been the most promising settings for appro…