332 citations · 1.2k across the 30 of their papers we have counts for
12 papers · 1 filter
Superconductivity at the Border of Electron Localization and Itinerancy
Rong Yu, Pallab Goswami, Qimiao Si +2
The superconducting state of iron pnictides and chalcogenides exists at the border of antiferromagnetic order. Consequently, these materials could provide clues about the relations…
s-wave Cooper pair insulators and theory of correlated superconductors
Predrag Nikolic, Zlatko Tesanovic
The pseudogap state of cuprate high-temperature superconductors has been often viewed as either a yet unknown competing order or a precursor state to superconductivity. While await…
Pair density wave instability and Cooper pair insulators in gapped fermion systems
Predrag Nikolic, Anton A. Burkov, Arun Paramekanti
By analyzing simple models of fermions in lattice potentials we argue that the zero-temperature pairing instability of any ideal band-insulator occurs at a finite momentum. The res…
Robust accidental nodes and zeroes and critical quasiparticle scaling in iron-based multiband superconductors
Valentin Stanev, Boian S. Alexandrov, Predrag Nikolic +1
We study multigap superconductivity, with strong angular variations of one of the gaps, as appropriate for certain iron-based high-temperature superconductors. We solve the gap equ…
Finite Momentum Pairing Instability of Band-Insulators With Multiple Bands
Predrag Nikolic, A. A. Burkov, Arun Paramekanti
We show, based on microscopic models, that fermionic band insulators with multiple bands and strong interband attraction are generically unstable towards nonzero momentum Cooper pa…
Superconductivity in Multi-orbital t-J1-J2 Model and its Implications for Iron Pnictides
Pallab Goswami, Predrag Nikolic, Qimiao Si
Motivated by the bad metal behavior of the iron pnictides, we study a multi-orbital model and investigate possible singlet superconducting pairings. Magnetic f…