Vortex states in hole-doped iron-pnictide superconductors

Abstract

Based on a phenomenological model with competing spin-density-wave (SDW) and extended $s-$wave superconductivity, the vortex states in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$ are investigated by solving Bogoliubov-de Gennes equations. Our result for the optimally doped compound without induced SDW is in qualitative agreement with recent scanning tunneling microscopy experiment. We also propose that the main effect of the SDW on the vortex states is to reduce the intensity of the in-gap peak in the local density of states and transfer the spectral weight to form additional peaks outside the gap.

5 pages, 3 figures

References in corpus (13)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Spin density wave anomaly at 140 K in the ternary iron arsenide BaFe2As2
• Observation of Fermi-surface-dependent nodeless superconducting gaps in Ba0.6K0.4Fe2As2
• Funtional Renormalization Group Study of the Pairing Symmetry and Pairing Mechanism of the FeAs Based High Temperature Superconductors
• Charge density wave origin of cuprate checkerboard visualized by scanning tunneling microscopy
• Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
• Scanning Tunneling Spectroscopy and Vortex Imaging in the Iron-Pnictide Superconductor BaFe${}_{1.8}$Co${}_{0.2}$As${}_2$
• Unconventional London penetration depth in Ba(Fe0.93Co0.07)2As2 single crystals
• Momentum dependence and nodes of the superconducting gap in iron-pnictides
• Electronic structure of heavily electron-doped BaFe${}_{1.7}$Co${}_{0.3}$As${}_2$ studied by angle-resolved photoemission
• Quasiparticle Heat Transport in Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$: Evidence for a k-dependent Superconducting Gap without Nodes
• Distinct high-T transitions in underdoped Ba${}_{1-x}$K${}_x$Fe${}_2$As${}_2$
• Vortex state in iron-based superconductors with collinear antiferromagnetic cores

Cited by in corpus (26)

• Spectroscopic scanning tunneling microscopy insights into Fe-based superconductors
• Observation of Lattice and Andreev Bound States of Vortices in Ba0.6K0.4Fe2As2 Single Crystals with Scanning Tunneling Microscopy/Spectroscopy
• Superconductivity in doped inversion-symmetric Weyl semimetals
• Anisotropic vortex lattice structures in the FeSe superconductor
• Quasiparticle states around a nonmagnetic impurity in electron-doped iron-based superconductors with spin-density-wave order
• Vector field controlled vortex lattice symmetry in LiFeAs
• Consistent picture for the electronic structure around a vortex core in iron-based superconductors
• Electronic vortex structure of Fe-based superconductors: application to LiFeAs
• Domain Walls in Normal and Superconducting States of Iron Pnictides
• Hidden sign-changing $s$-wave superconductivity in monolayer FeSe
• Superfluid density in the $s_{\pm }$-wave state of clean iron-based superconductors
• Tunneling interstitial impurity in iron-chalcogenide based superconductors
• Signatures of nodeless multiband superconductivity and particle-hole crossover in the vortex cores of FeTe${}_{0.55}$Se${}_{0.45}$
• Intervortex forces in competing-order superconductors
• In-gap Bound States Induced by Interstitial Fe Impurities in Iron-based Superconductors
• Theory of Mixed-State Effect on Quasiparticle Interference in Iron-based Superconductors
• Anomalous sharp peak in the London penetration depth induced by the nodeless-to-nodal superconducting transition in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Fermi surface evolution and checker-board block-spin antiferromagnetism in $A_x$Fe${}_{2-y}$Se${}_2$
• Magnetic domain walls induced by twin boundaries in low doped Fe-pnictides
• Signatures of unconventional pairing in near-vortex electronic structure of LiFeAs
• Skyrmion-like textures in superconductors with competing order
• Local spin-density-wave order inside vortex cores in multiband superconductors
• Robust $s_{\pm }$-wave superconductivity against multi-impurity in iron-based superconductors
• Competing ferromagnetic superconducting states in europium-based iron pnictides
• Mixed-State Effect on the Low-Energy Spin Dynamics in Optimally-doped Iron Pnictide Superconductors
• Nesting-induced Local Electronic Patterns around a Single As (Te, Se) Vacancy in Iron-based Superconductors