Effects of Ru Substitution on Dimensionality and Electron Correlations in Ba(Fe_{1-x}Ru_x)_2As_2

Abstract

We report a systematic angle-resolved photoemission spectroscopy study on Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$ for a wide range of Ru concentrations (0.15 $\le$ \emph{x} $\le$ 0.74). We observed a crossover from two-dimension to three-dimension for some of the hole-like Fermi surfaces with Ru substitution and a large reduction in the mass renormalization close to optimal doping. These results suggest that isovalent Ru substitution has remarkable effects on the low-energy electron excitations, which are important for the evolution of superconductivity and antiferromagnetism in this system.

arXiv comment4 pages, 4 figures

References in corpus (18)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Quantum Criticality in Heavy Fermion Metals
• Superconductivity at 22 K in Co-doped BaFe2As2 Crystals
• Similarities between structural distortions under pressure and chemical doping in superconducting BaFe2As2
• A precise method for visualizing dispersive features in image plots
• Superconductivity induced by phosphorus doping and its coexistence with ferromagnetism in EuFe${}_2$(As${}_{0.7}$P${}_{0.3}$)${}_2$
• Observation of Dirac Cone Electronic Dispersion in BaFe2As2
• Evolution of the Fermi surface of BaFe_2(As_{1-x}P_x)_2 on entering the superconducting dome
• Fe-based superconductors: an angle-resolved photoemission spectroscopy perspective
• Superconductivity in Ru substituted BaFe2-xRuxAs2
• Hole and Electron Contributions to the Transport Properties of Ba(Fe_(1-x)Ru_x)_2As_2 Single Crystals
• Physical and magnetic properties of Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$ single crystals
• Quantum criticality in the iron pnictides and chalcogenides
• Electron-Hole Asymmetry in Superconductivity of Pnictides Originated from the Observed Rigid Chemical Potential Shift
• Orbital Characters Determined from Fermi Surface Intensity Patterns using Angle-Resolved Photoemission Spectroscopy
• Significant reduction of electronic correlations upon isovalent Ru substitution of BaFe2As2
• What controls the phase diagram and superconductivity in Ru substituted BaFe${}_2$As${}_2$?
• Electronic structure of Ba(Fe,Ru)2As2 and Sr(Fe,Ir)2As2 alloys

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• Band structure and Fermi surfaces of the reentrant ferromagnetic superconductor Eu(Fe0.86Ir0.14)2As2