Effects of disordered Ru substitution in BaFe${}_2$As${}_2$: Realization of superdiffusion mechanism in real materials

Abstract

An unexpected insensitivity of the Fermi surface to impurity scattering is found in Ru substituted BaFe${}_2$As${}_2$ from first-principles theory, offering a natural explanation of the unusual resilience of transport and superconductivity to a high level of disordered substitution in this material. This robustness is shown to originate from a coherent interference of correlated on-site and inter-site impurity scattering, similar in spirit to the microscopic mechanism of superdiffusion in one dimension. Our result also demonstrates a strong substitution dependence of the Fermi surface and carrier concentration, and provides a natural resolution to current discrepancies in recent photoelectron spectroscopy. These effects offer a natural explanation of the diminishing long-range magnetic, orbital and superconducting order with high substitution.

5 pages, 3 figures, plus supplementary materials

References in corpus (11)

• Spin density wave anomaly at 140 K in the ternary iron arsenide BaFe2As2
• Unfolding first-principles band structures
• Where Are the Extra d Electrons in Transition-Metal Substituted Fe Pnictides?
• Do Transition Metal Substitutions Dope Carriers in Iron Based Superconductors?
• Hole and Electron Contributions to the Transport Properties of Ba(Fe_(1-x)Ru_x)_2As_2 Single Crystals
• Orbital Characters Determined from Fermi Surface Intensity Patterns using Angle-Resolved Photoemission Spectroscopy
• Effects of cobalt doping and three-dimensionality in $BaF{e}_{2}A{s}_2$
• Effective doping and suppression of Fermi surface reconstruction via Fe vacancy disorder in KxFe2-ySe2
• Electronic structure of Ba(Fe,Ru)2As2 and Sr(Fe,Ir)2As2 alloys
• Effects of Ru Substitution on Dimensionality and Electron Correlations in Ba(Fe_{1-x}Ru_x)_2As_2
• Dynamical conductivity at the dirty superconductor-metal quantum phase transition

Cited by in corpus (16)

• Effect of electron irradiation on superconductivity in single crystals of Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$ ($x=$0.24)
• Electronic state unfolding for plane waves: energy bands, Fermi surfaces and spectral functions
• Systematic Quantum Cluster Typical Medium Method For the Study of Localization in Strongly Disordered Electronic Systems
• Fermi surface and effective masses in photoemission response of the (Ba${}_{1-x}$K${}_x$)Fe${}_2$As${}_2$ superconductor
• Effect of realistic out-of-plane dopant potentials on the superfluid density of overdoped cuprates
• Ru-doping on iron based pnictides: the "unfolded" dominant role of structural effects for superconductivity
• Electronic structures of doped BaFe${}_2$As${}_2$ materials: virtual crystal approximation versus super-cell approach
• On the Nature of Localization in Ti doped Si
• In-plane electronic anisotropy in the antiferromagnetic-orthorhombic phase of isovalent-substituted Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$
• Isotropic Quenched Disorder Triggers a Robust Nematic State in Electron-Doped Pnictides
• Charge doping versus impurity scattering in chemically substituted iron-pnictides
• Theoretical investigation of the electronic and magnetic properties of the orthorhombic phase of Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Study of the hyperfine fields in the BaFe${}_2$As${}_2$ family and its relation to the magnetic moment
• Unusual nodal behaviors of the superconducting gap in the iron-based superconductor Ba(Fe${}_{0.65}$Ru${}_{0.35}$)${}_2$As${}_2$: Effects of spin-orbit coupling
• Disorder correction to the Néel temperature of ruthenium-doped BaFe${}_2$As${}_2$: Theoretical analysis
• Two-particle excitations under coexisting electron interaction and disorder