4 papers
Bogoliubov Fermi Surfaces in Spin-1/2 Systems: Model Hamiltonians and Experimental Consequences
Chandan Setty, Yifu Cao, Andreas Kreisel +2
Bogoliubov Fermi surfaces (BFSs) are topologically protected regions of zero energy excitations in a superconductor whose dimension equals that of the underlying normal state Fermi…
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…
Effects of momentum-dependent quasiparticle renormalization on the gap structure of iron-based superconductors
Shinibali Bhattacharyya, P. J. Hirschfeld, Thomas A. Maier +1
We discuss the influence of momentum-dependent correlations on the superconducting gap structure in iron-based superconductors. Within the weak coupling approach including self-ene…
Topological Ultranodal pair states in iron-based superconductors
Chandan Setty, Shinibali Bhattacharyya, Yifu Cao +2
Bogoliubov Fermi surfaces are contours of zero-energy excitations that are protected in the superconducting state. Here we show that multiband superconductors with dominant spin si…