54 citations · 103 across the 5 of their papers we have counts for
5 papers
Superconductivity with repulsion: a variational approach
Laura Fanfarillo, Yifu Cao, Chandan Setty +2
We revisit the stability of the superconducting state within mean-field theory in the presence of repulsive pairing interactions, focusing on multiband systems where such channels…
Spin fluctuations in the ultranodal superconducting state of Fe(Se,S)
Yifu Cao, Chandan Setty, Andreas Kreisel +2
The iron-based superconductor FeSe isovalently substituted with S displays an abundance of remarkable phenomena that have not been fully understood, at the center of which are appa…
Microscopic origin of ultranodal superconducting states in spin-1/2 systems
Yifu Cao, Chandan Setty, Laura Fanfarillo +2
Several unconventional superconductors show indications of zero-energy excitations in the superconducting state consistent with the existence of a so-called Bogoliubov Fermi surfac…
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…
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…