Quasiparticle interference in iron-based superconductors

Abstract

We systematically calculate quasiparticle interference (QPI) signatures for the whole phase diagram of iron-based superconductors. Impurities inherent in the sample together with ordered phases lead to distinct features in the QPI images that are believed to be measured in spectroscopic imaging-scanning tunneling microscopy (SI-STM). In the spin-density wave phase the rotational symmetry of the electronic structure is broken, signatures of which are also seen in the coexistence regime with both superconducting and magnetic order. In the superconducting regime we show how the different scattering behavior for magnetic and non-magnetic impurities allows to verify the $s^{+-}$ symmetry of the order parameter. The effect of possible gap minima or nodes is discussed.

19 pages, 7 figures

References in corpus (30)

• Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}
• LaFeAsO${}_{1-x}$F${}_x$: A low carrier density superconductor near itinerant magnetism
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
• Is LaO${}_{1-x}$F${}_x$FeAs an electron-phonon superconductor ?
• Reply to Comment on "Unconventional s-wave superconductivity in Fe(Se,Te)"
• Funtional Renormalization Group Study of the Pairing Symmetry and Pairing Mechanism of the FeAs Based High Temperature Superconductors
• Multiband magnetism and superconductivity in Fe-based compounds
• Theory of magnetic excitations in iron-based layered superconductors
• A neutron scattering study of the interplay between structure and magnetism in Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Spin susceptibility, phase diagram, and quantum criticality in the electron-doped high Tc Superconductor Ba[Fe(1-x)Co(x)]2As2
• Superconductivity and spin-density-waves in multi-band metals
• Momentum dependence and nodes of the superconducting gap in iron-pnictides
• Origin of Gap Anisotropy in Spin Fluctuation Models of the Fe-pnictides
• Theory of itinerant magnetic excitations in the SDW phase of iron-based superconductors
• Homogeneous vs. inhomogeneous coexistence of magnetic order and superconductivity probed by NMR in Co and K doped iron pnictides
• Spin Fluctuation Dynamics and Multiband Superconductivity in Iron Pnictides
• Nodes in the Gap Function of LaFePO, the Gap Function of the Fe(Se,Te) Systems, and the STM Signature of the s${}_{\pm }$ Pairing
• Magnetic and Metallic State at Intermediate Hubbard U Coupling in Multiorbital Models for Undoped Fe Pnictides
• Spin excitations in the excitonic spin-density-wave state of the iron pnictides
• On superconducting and magnetic properties of iron-oxypnictides
• Model for nodal quasiparticle scattering in a disordered vortex lattice
• Excitonic spin density wave state in iron pnictides
• Magnetic field evolution of the quasiparticle interference in a d-wave superconductor
• d-Wave Checkerboard Order in Cuprates
• Doping evolution of itinerant magnetic excitations in Fe-based oxypnictides
• Extinction of quasiparticle interference in underdoped cuprates with coexisting order
• Complementary Pair Density Wave and d-wave Checkerboard Order in High Temperature Superconductors
• Quasiparticle mirages in the tunneling spectra of d-wave superconductors

Cited by in corpus (31)

• Gap symmetry and structure of Fe-based superconductors
• Discovery of Orbital-Selective Cooper Pairing in FeSe
• Anisotropic Energy Gaps of Iron-based Superconductivity from Intra-band Quasiparticle Interference in LiFeAs
• Using Gap Symmetry and Structure to Reveal the Pairing Mechanism in Fe-based Superconductors
• Scrutinizing the double superconducting gaps and strong coupling pairing in (Li1-xFexOH)FeSe
• Microscopically derived Ginzburg-Landau theory for magnetic order in the iron pnictides
• Quasiparticle interference in heavy Fermion superconductor CeCoIn_5
• Quasiparticle interference in an iron-based superconductor
• Impurity-induced quasiparticle interference in the parent compounds of iron-pnictide superconductors
• Evolution of the multiband RKKY interaction: Application to iron pnictides and chalcogenides
• Rashba spin-orbit coupling effects in quasiparticle interference of non-centrosymmetric superconductors
• Multiorbital and hybridization effects in the quasiparticle interference of triplet superconductor Sr2RuO4
• Full t-matrix approach to quasiparticle interference in non-centrosymmetric superconductors
• Antiferromagnetism in Iron-Based Superconductors: Selection of Magnetic Order and Quasiparticle Interference
• Detecting sign-changing superconducting gap in LiFeAs using quasiparticle interference
• Gap function of hexagonal pnictide superconductor SrPtAs from quasiparticle interference spectrum
• Doping dependence of antiferromagnetism in models of the pnictides
• Quasiparticle Interference in Fe-based Superconductors Based on a Five-Orbital Tight-Binding Model
• Quasi-one Dimensional Nanostructures as Sign of Nematicity in Iron Pnictides and Chalcogenides
• Quasiparticle scattering interference in iron pnictides: A probe of the origin of nematicity
• Testing the sign-changing superconducting gap in iron-based superconductors with quasiparticle interference and neutron scattering
• Theory of Mixed-State Effect on Quasiparticle Interference in Iron-based Superconductors
• Quasiparticle interference in doped topological insulators with nematic superconductivity
• Roles of anisotropic and unequal gaps in the quasiparticle interference of superconducting iron pnictides
• Hyperbolic fringe signal for twin impurity quasiparticle interference
• Effect of the additional Se layer on the electronic structure of iron-based superconductor FeSe/SrTiO${}_3$
• Investigation of magnetic phases in parent compounds of Iron-chalcogenides via quasiparticle scattering interference
• Momentum space imaging of locally noncentrosymmetric superconductors
• Generalized joint density of states and its application to exploring the pairing symmetry of superconductors
• Robust determination of superconducting gap sign changes via quasiparticle interference
• Quasiparticle Scattering Interference in (K,Tl)FexSe2 Superconductors