374 citations · 845 across the 15 of their papers we have counts for
5 papers · 1 filter
Preemptive nematic order, pseudogap, and orbital order in the iron pnictides
R. M. Fernandes, A. V. Chubukov, J. Knolle +2
Starting from a microscopic itinerant model, we derive and analyze the effective low-energy model for collective magnetic excitations in the iron pnictides. We show that the stripe…
Magnetic resonance from the interplay of frustration and superconductivity
J. Knolle, I. Eremin, J. Schmalian +1
Motivated by the iron-based superconductors, we develop a self-consistent electronic theory for the itinerant spin excitations in the regime of coexistence of the antiferromagnetic…
Effect of nodes, ellipticity and impurities on the spin resonance in Iron-based superconductors
S. Maiti, J. Knolle, I. Eremin +1
We analyze doping dependence of the spin resonance of an s+- superconductor and its sensitivity to the ellipticity of electron pockets, to magnetic and non-magnetic impurities, and…
Effect of Fermi Surface Nesting on Resonant Spin Excitations in Ba1-xKxFe2As2
J. -P. Castellan, S. Rosenkranz, E. A. Goremychkin +13
We report inelastic neutron scattering measurements of the resonant spin excitations in Ba1-xKxFe2As2 over a broad range of electron band filling. The fall in the superconducting t…
Multiorbital Spin Susceptibility in a Magnetically Ordered State - Orbital versus Excitonic Spin Density Wave Scenario
J. Knolle, I. Eremin, R. Moessner
We present a general theory of multiorbital spin waves in magnetically ordered metallic systems. Motivated by the itinerant magnetism of iron-based superconductors, we compare the…