Charge redistribution at the antiferromagnetic phase transition in SrFeAsF compound

Abstract

The relationship between spin, electron, and crystal structure has been one of the foremost issues in understanding the superconducting mechanism since the discovery of iron-based high temperature superconductors. Here, we report Mössbauer and first-principles calculations studies of the parent compound SrFeAsF with the largest temperature gap ($\sim$50\,K) between the structural and antiferromagnetic (AFM) transitions. Our results reveal that the structural transition has little effect on the electronic structure of the compound SrFeAsF while the development of the AFM order induces a redistribution of the charges near the Fermi level.

6 Pages, 7 Figures

References in corpus (11)

• High-temperature superconductivity in iron-based materials
• Theory of Electron Nematic Order in LaOFeAs
• Magnetism in Fe-based superconductors
• Unconventional electronic reconstruction in undoped (Ba,Sr)Fe${}_2$As${}_2$ across the spin density wave transition
• Competition of magnetism and superconductivity in underdoped (Ba1-xKx)Fe2As2
• Synthesis, crystal structure and spin-density-wave anomaly of the iron arsenide-fluoride SrFeAsF
• SrFeAsF as a parent compound for iron pnictide superconductors
• Shape of spin density wave versus temperature in AFe2As2 (A=Ca, Ba, Eu): A Mössbauer study
• Two-dimensional magnetism in the pnictide superconductor parent material SrFeAsF probed by muon-spin relaxation
• Band structure of SrFeAsF and CaFeAsF as parent phases for a new group of oxygen-free FeAs superconductors
• Magneto-structural coupling and harmonic lattice dynamics in CaFe${}_2$As${}_2$ probed by Mössbauer spectroscopy

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• Structure and physical properties of new layered iron oxychalcogenide BaFe2OSe2
• Superconducting properties and pseudogap from preformed Cooper pairs in the triclinic (CaFe${}_{1-x}$Pt${}_x$As)${}_{10}$Pt${}_3$As${}_8$
• Local Structure and Hyperfine Interactions of 57Fe in NaFeAs Studied by Mossbauer Spectroscopy
• Mössbauer spectroscopy study of magnetic fluctuations in superconducting RbGd${}_2$Fe${}_4$As${}_4$O${}_2$
• 57Fe Mossbauer study of Lu2Fe3Si5 iron silicide superconductor
• Study of the rare earth effects on the magnetic fluctuations in RbLn${}_2$Fe${}_4$As${}_4$O${}_2$ (Ln = Tb, Dy and Ho) by Mössbauer spectroscopy