Specifics of impurity effects in ferropnictide superconductors
Y.G. Pogorelov, M.C. Santos, V.M. Loktev
TL;DR
This paper investigates how impurities affect the electronic properties and superconducting state of iron pnictide superconductors, focusing on localized energy levels and modifications to the band structure and order parameter.
Contribution
It provides a detailed analysis of impurity-induced localized states and their impact on the superconducting properties of ferropnictides, a topic not extensively covered before.
Findings
Impurities can create localized energy levels within the superconducting gap.
Impurity doping modifies the band structure and superconducting order parameter.
The superconducting state evolves significantly with impurity concentration.
Abstract
Effects of impurities and disorder on quasiparticle spectrum in superconducting iron pnictides are considered. Possibility for occurrence of localized energy levels due to impurities within the superconducting gap and the related modification of band structure and of superconducting order parameter are discussed. The evolution of superconducting state with impurity doping is traced.
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