Pairing mechanism in Fe-based superconductors

A Chubukov - Annu. Rev. Condens. Matter Phys., 2012 - annualreviews.org
I review recent works on the symmetry and the structure of the superconducting gap in Fe-
based superconductors (FeSCs) and on the underlying pairing mechanism in these …

Low-energy microscopic models for iron-based superconductors: a review

RM Fernandes, AV Chubukov - Reports on Progress in Physics, 2016 - iopscience.iop.org
The development of sensible microscopic models is essential to elucidate the normal-state
and superconducting properties of the iron-based superconductors. Because these …

Preemptive nematic order, pseudogap, and orbital order in the iron pnictides

RM Fernandes, AV Chubukov, J Knolle, I Eremin… - Physical Review B …, 2012 - APS
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 …

Functional renormalization group for multi-orbital Fermi surface instabilities

C Platt, W Hanke, R Thomale - Advances in Physics, 2013 - Taylor & Francis
Technological progress in material synthesis, as well as artificial realization of condensed
matter scenarios via ultra-cold atomic gases in optical lattices or epitaxial growth of thin …

Iron-based superconductors, seven years later

A Chubukov, PJ Hirschfeld - Physics today, 2015 - pubs.aip.org
Discovery of the new materials raised researchers' hopes of solving the riddle of high-
temperature superconductivity. But the unexpectedly diverse systems turned out to possess …

Sensitivity of the superconducting state and magnetic susceptibility to key aspects of electronic structure in ferropnictides

AF Kemper, TA Maier, S Graser, HP Cheng… - New Journal of …, 2010 - iopscience.iop.org
Experiments on the iron–pnictide superconductors appear to show some materials where
the ground state is fully gapped, and others where low-energy excitations dominate …

Anisotropic charge dynamics in detwinned Ba (Fe1-xCox) 2As2

A Dusza, A Lucarelli, F Pfuner, JH Chu… - Europhysics …, 2011 - iopscience.iop.org
We investigate the optical conductivity with light polarized along the in-plane orthorhombic a
and b axes of Ba (Fe 1− x Co x) 2 As 2 for x= 0 and 2.5% under uniaxial pressure across …

Evolution of symmetry and structure of the gap in iron-based superconductors with doping and interactions

S Maiti, MM Korshunov, TA Maier, PJ Hirschfeld… - Physical Review B …, 2011 - APS
We present a detailed study of the symmetry and structure of the pairing gap in Fe-based
superconductors (FeSCs). We treat FeSCs as quasi-2D, decompose the pairing interaction …

[HTML][HTML] Magnetic interactions in iron superconductors: A review

E Bascones, B Valenzuela, MJ Calderón - Comptes Rendus Physique, 2016 - Elsevier
High-temperature superconductivity in iron pnictides and chalcogenides emerges when a
magnetic phase is suppressed. The multi-orbital character and the strength of correlations …

Orbitally and magnetically induced anisotropy in iron-based superconductors

W Lv, P Phillips - Physical Review B—Condensed Matter and Materials …, 2011 - APS
Recent experimental developments in the iron pnictides have unambiguously demonstrated
the existence of in-plane electronic anisotropy in the absence of the long-range magnetic …