29 citations · 89 across the 5 of their papers we have counts for
5 papers
Inter-orbital nematicity and the origin of a single electron Fermi pocket in FeSe
Daniel Steffensen, Andreas Kreisel, P. J. Hirschfeld +1
The electronic structure of the enigmatic iron-based superconductor FeSe has puzzled researchers since spectroscopic probes failed to observe the expected electron pocket at the $Y…
Topological Superconductivity Induced by Magnetic Texture Crystals
Daniel Steffensen, Morten H. Christensen, Brian M. Andersen +1
We present a detailed investigation of the topological phases and Majorana fermion (MF) excitations that arise from the bulk interplay between (un)conventional one/two-band spin-si…
Trapping Majorana Zero Modes in Vortices of Magnetic Texture Crystals Coupled to Nodal Superconductors
Daniel Steffensen, Brian M. Andersen, Panagiotis Kotetes
We propose a mechanism for opening a full bulk energy gap and inducing vortex Majorana zero modes (MZMs) in nodal superconductors (SCs). We show that this becomes possible by coupl…
Non-local correlations in Iron Pnictides and Chalcogenides
Shinibali Bhattacharyya, Kristofer Björnson, Karim Zantout +6
Deviations of low-energy electronic structure of iron-based superconductors from density functional theory predictions have been parametrized in terms of band- and orbital-dependen…
Disorder-Induced Electronic Nematicity
Daniel Steffensen, Panagiotis Kotetes, Indranil Paul +1
We expose the theoretical mechanisms underlying disorder-induced nematicity in systems exhibiting strong fluctuations or ordering in the nematic channel. Our analysis consists of a…